Remove contracts v1 fees (#1596)

* Remove contracts v1 fees

* Fix linting

packages/api-derive/src/contracts/fees.ts

@@ -31,48 +31,6 @@ function parseResult ([callBaseFee, contractFee, createBaseFee, creationFee, ren
   };
 }
 
-// Only for 1.0 support. rentByteFee, rentDepositOffset, tombstoneDeposit are not available in substrate 1.0.
-// TODO remove this once 1.0 support is dropped
-function queryV1 (api: ApiInterfaceRx): Observable<DerivedContractFees> {
-  return (
-    api.queryMulti([
-      api.query.contract.callBaseFee,
-      api.query.contract.contractFee,
-      api.query.contract.createBaseFee,
-      api.query.contract.creationFee,
-      api.query.contract.transactionBaseFee,
-      api.query.contract.transactionByteFee,
-      api.query.contract.transferFee
-    ]) as unknown as Observable<BN[]>
-  ).pipe(
-    map(([callBaseFee, contractFee, createBaseFee, creationFee, transactionBaseFee, transactionByteFee, transferFee]): DerivedContractFees =>
-      // We've done this on purpose, i.e. so we can  just copy the name/order from the parse above and
-      // see gaps, in this case those are filled with `ZERO`
-      parseResult([
-        callBaseFee, contractFee, createBaseFee, creationFee, ZERO, ZERO, ZERO, transactionBaseFee, transactionByteFee, transferFee
-      ])
-    )
-  );
-}
-
-// query via query (early v2, non-current, support to be dropped])
-function queryQuery (api: ApiInterfaceRx): Observable<ResultV2> {
-  const queryBase = api.query.contracts || api.query.contract;
-
-  return api.queryMulti([
-    queryBase.callBaseFee,
-    queryBase.contractFee,
-    queryBase.createBaseFee,
-    queryBase.creationFee,
-    queryBase.rentByteFee,
-    queryBase.rentDepositOffset,
-    queryBase.tombstoneDeposit,
-    queryBase.transactionBaseFee,
-    queryBase.transactionByteFee,
-    queryBase.transferFee
-  ]) as unknown as Observable<ResultV2>;
-}
-
 // query via constants (current applicable path)
 function queryConstants (api: ApiInterfaceRx): Observable<ResultV2> {
   return of([
@@ -104,14 +62,10 @@ function queryConstants (api: ApiInterfaceRx): Observable<ResultV2> {
  */
 export function fees (api: ApiInterfaceRx): () => Observable<DerivedContractFees> {
   return memo((): Observable<DerivedContractFees> => {
-    if (api.query.contract && !api.query.contract.rentByteFee) {
-      return queryV1(api);
-    }
-
     return (
       api.consts.contracts
         ? queryConstants(api)
-        : queryQuery(api)
+        : of([ZERO, ZERO, ZERO, ZERO, ZERO, ZERO, ZERO, ZERO, ZERO, ZERO])
     ).pipe(
       map(([callBaseFee, contractFee, createBaseFee, creationFee, rentByteFee, rentDepositOffset, tombstoneDeposit, transactionBaseFee, transactionByteFee, transferFee]): DerivedContractFees =>
         // We've done this on purpose, i.e. so we can  just copy the name/order from the parse above and see gaps