diff --git a/packages/x-rxjs/src/cjs/index.d.ts b/packages/x-rxjs/src/cjs/index.d.ts
deleted file mode 100644
index 652cd6e29..000000000
--- a/packages/x-rxjs/src/cjs/index.d.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-// Copyright 2017-2021 @polkadot/x-rxjs authors & contributors
-// SPDX-License-Identifier: Apache-2.0
-
-export * from 'rxjs';
diff --git a/packages/x-rxjs/src/cjs/index.js b/packages/x-rxjs/src/cjs/index.js
deleted file mode 100644
index 81ba61013..000000000
--- a/packages/x-rxjs/src/cjs/index.js
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright 2017-2021 @polkadot/x-rxjs authors & contributors
-// SPDX-License-Identifier: Apache-2.0
-
-// This is not great, but while having esm files, rxjs doesn't quite play nicely with
-// Node.js esm files. (Hopefully this improves in 7.0, although no exports map as of yet)
-
-const rxjs = require('rxjs');
-
-exports.Observable = rxjs.Observable;
-exports.ConnectableObservable = rxjs.ConnectableObservable;
-exports.GroupedObservable = rxjs.GroupedObservable;
-exports.observable = rxjs.observable;
-exports.Subject = rxjs.Subject;
-exports.BehaviorSubject = rxjs.BehaviorSubject;
-exports.ReplaySubject = rxjs.ReplaySubject;
-exports.AsyncSubject = rxjs.AsyncSubject;
-exports.asap = rxjs.asap;
-exports.asapScheduler = rxjs.asapScheduler;
-exports.async = rxjs.async;
-exports.asyncScheduler = rxjs.asyncScheduler;
-exports.queue = rxjs.queue;
-exports.queueScheduler = rxjs.queueScheduler;
-exports.animationFrame = rxjs.animationFrame;
-exports.animationFrameScheduler = rxjs.animationFrameScheduler;
-exports.VirtualTimeScheduler = rxjs.VirtualTimeScheduler;
-exports.VirtualAction = rxjs.VirtualAction;
-exports.Scheduler = rxjs.Scheduler;
-exports.Subscription = rxjs.Subscription;
-exports.Subscriber = rxjs.Subscriber;
-exports.Notification = rxjs.Notification;
-exports.NotificationKind = rxjs.NotificationKind;
-exports.pipe = rxjs.pipe;
-exports.noop = rxjs.noop;
-exports.identity = rxjs.identity;
-exports.isObservable = rxjs.isObservable;
-exports.ArgumentOutOfRangeError = rxjs.ArgumentOutOfRangeError;
-exports.EmptyError = rxjs.EmptyError;
-exports.ObjectUnsubscribedError = rxjs.ObjectUnsubscribedError;
-exports.UnsubscriptionError = rxjs.UnsubscriptionError;
-exports.TimeoutError = rxjs.TimeoutError;
-exports.bindCallback = rxjs.bindCallback;
-exports.bindNodeCallback = rxjs.bindNodeCallback;
-exports.combineLatest = rxjs.combineLatest;
-exports.concat = rxjs.concat;
-exports.defer = rxjs.defer;
-exports.empty = rxjs.empty;
-exports.forkJoin = rxjs.forkJoin;
-exports.from = rxjs.from;
-exports.fromEvent = rxjs.fromEvent;
-exports.fromEventPattern = rxjs.fromEventPattern;
-exports.generate = rxjs.generate;
-exports.iif = rxjs.iif;
-exports.interval = rxjs.interval;
-exports.merge = rxjs.merge;
-exports.never = rxjs.never;
-exports.of = rxjs.of;
-exports.onErrorResumeNext = rxjs.onErrorResumeNext;
-exports.pairs = rxjs.pairs;
-exports.partition = rxjs.partition;
-exports.race = rxjs.race;
-exports.range = rxjs.range;
-exports.throwError = rxjs.throwError;
-exports.timer = rxjs.timer;
-exports.using = rxjs.using;
-exports.zip = rxjs.zip;
-exports.scheduled = rxjs.scheduled;
-exports.EMPTY = rxjs.EMPTY;
-exports.NEVER = rxjs.NEVER;
-exports.config = rxjs.config;
diff --git a/packages/x-rxjs/src/cjs/operators.d.ts b/packages/x-rxjs/src/cjs/operators.d.ts
deleted file mode 100644
index c137d5dc3..000000000
--- a/packages/x-rxjs/src/cjs/operators.d.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-// Copyright 2017-2021 @polkadot/x-rxjs authors & contributors
-// SPDX-License-Identifier: Apache-2.0
-
-export * from 'rxjs/operators';
diff --git a/packages/x-rxjs/src/cjs/operators.js b/packages/x-rxjs/src/cjs/operators.js
deleted file mode 100644
index 183b78989..000000000
--- a/packages/x-rxjs/src/cjs/operators.js
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright 2017-2021 @polkadot/x-rxjs authors & contributors
-// SPDX-License-Identifier: Apache-2.0
-
-// This is not great, but while having esm files, rxjs doesn't quite play nicely with
-// Node.js esm files. (Hopefully this improves in 7.0, although no exports map as of yet)
-
-const operators = require('rxjs/operators');
-
-exports.audit = operators.audit;
-exports.auditTime = operators.auditTime;
-exports.buffer = operators.buffer;
-exports.bufferCount = operators.bufferCount;
-exports.bufferTime = operators.bufferTime;
-exports.bufferToggle = operators.bufferToggle;
-exports.bufferWhen = operators.bufferWhen;
-exports.catchError = operators.catchError;
-exports.combineAll = operators.combineAll;
-exports.combineLatest = operators.combineLatest;
-exports.concat = operators.concat;
-exports.concatAll = operators.concatAll;
-exports.concatMap = operators.concatMap;
-exports.concatMapTo = operators.concatMapTo;
-exports.count = operators.count;
-exports.debounce = operators.debounce;
-exports.debounceTime = operators.debounceTime;
-exports.defaultIfEmpty = operators.defaultIfEmpty;
-exports.delay = operators.delay;
-exports.delayWhen = operators.delayWhen;
-exports.dematerialize = operators.dematerialize;
-exports.distinct = operators.distinct;
-exports.distinctUntilChanged = operators.distinctUntilChanged;
-exports.distinctUntilKeyChanged = operators.distinctUntilKeyChanged;
-exports.elementAt = operators.elementAt;
-exports.endWith = operators.endWith;
-exports.every = operators.every;
-exports.exhaust = operators.exhaust;
-exports.exhaustMap = operators.exhaustMap;
-exports.expand = operators.expand;
-exports.filter = operators.filter;
-exports.finalize = operators.finalize;
-exports.find = operators.find;
-exports.findIndex = operators.findIndex;
-exports.first = operators.first;
-exports.groupBy = operators.groupBy;
-exports.ignoreElements = operators.ignoreElements;
-exports.isEmpty = operators.isEmpty;
-exports.last = operators.last;
-exports.map = operators.map;
-exports.mapTo = operators.mapTo;
-exports.materialize = operators.materialize;
-exports.max = operators.max;
-exports.merge = operators.merge;
-exports.mergeAll = operators.mergeAll;
-exports.mergeMap = operators.mergeMap;
-exports.flatMap = operators.flatMap;
-exports.mergeMapTo = operators.mergeMapTo;
-exports.mergeScan = operators.mergeScan;
-exports.min = operators.min;
-exports.multicast = operators.multicast;
-exports.observeOn = operators.observeOn;
-exports.onErrorResumeNext = operators.onErrorResumeNext;
-exports.pairwise = operators.pairwise;
-exports.partition = operators.partition;
-exports.pluck = operators.pluck;
-exports.publish = operators.publish;
-exports.publishBehavior = operators.publishBehavior;
-exports.publishLast = operators.publishLast;
-exports.publishReplay = operators.publishReplay;
-exports.race = operators.race;
-exports.reduce = operators.reduce;
-exports.repeat = operators.repeat;
-exports.repeatWhen = operators.repeatWhen;
-exports.retry = operators.retry;
-exports.retryWhen = operators.retryWhen;
-exports.refCount = operators.refCount;
-exports.sample = operators.sample;
-exports.sampleTime = operators.sampleTime;
-exports.scan = operators.scan;
-exports.sequenceEqual = operators.sequenceEqual;
-exports.share = operators.share;
-exports.shareReplay = operators.shareReplay;
-exports.single = operators.single;
-exports.skip = operators.skip;
-exports.skipLast = operators.skipLast;
-exports.skipUntil = operators.skipUntil;
-exports.skipWhile = operators.skipWhile;
-exports.startWith = operators.startWith;
-exports.subscribeOn = operators.subscribeOn;
-exports.switchAll = operators.switchAll;
-exports.switchMap = operators.switchMap;
-exports.switchMapTo = operators.switchMapTo;
-exports.take = operators.take;
-exports.takeLast = operators.takeLast;
-exports.takeUntil = operators.takeUntil;
-exports.takeWhile = operators.takeWhile;
-exports.tap = operators.tap;
-exports.throttle = operators.throttle;
-exports.throttleTime = operators.throttleTime;
-exports.throwIfEmpty = operators.throwIfEmpty;
-exports.timeInterval = operators.timeInterval;
-exports.timeout = operators.timeout;
-exports.timeoutWith = operators.timeoutWith;
-exports.timestamp = operators.timestamp;
-exports.toArray = operators.toArray;
-exports.window = operators.window;
-exports.windowCount = operators.windowCount;
-exports.windowTime = operators.windowTime;
-exports.windowToggle = operators.windowToggle;
-exports.windowWhen = operators.windowWhen;
-exports.withLatestFrom = operators.withLatestFrom;
-exports.zip = operators.zip;
-exports.zipAll = operators.zipAll;
diff --git a/packages/x-rxjs/src/cjs/package.json b/packages/x-rxjs/src/cjs/package.json
deleted file mode 100644
index 5bbefffba..000000000
--- a/packages/x-rxjs/src/cjs/package.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "type": "commonjs"
-}
diff --git a/packages/x-rxjs/src/operators.ts b/packages/x-rxjs/src/operators.ts
deleted file mode 100644
index c137d5dc3..000000000
--- a/packages/x-rxjs/src/operators.ts
+++ /dev/null
@@ -1,4 +0,0 @@
-// Copyright 2017-2021 @polkadot/x-rxjs authors & contributors
-// SPDX-License-Identifier: Apache-2.0
-
-export * from 'rxjs/operators';