Remove as unknown (#1636)

* Remove some as unknowns

* Rename sanitize

* Remove file

packages/metadata/src/Decorated/storage/fromMetadata/index.ts

@@ -39,7 +39,7 @@ export default function fromMetadata (registry: Registry, metadata: Metadata): S
       }, { metaVersion: metadata.version });
 
       return newModule;
-    }, {} as unknown as ModuleStorage);
+    }, {} as ModuleStorage);
 
     return result;
   }, { ...getStorage(registry, metadata.version) });

packages/metadata/src/Decorated/storage/fromMetadata/substrate.ts

@@ -24,7 +24,7 @@ function createRuntimeFunction (method: string, key: string, { documentation, ty
         modifier: createType(registry, 'StorageEntryModifierLatest', 1), // required
         type: createType(registry, 'StorageEntryTypeLatest', type, 0),
         toJSON: (): any => key
-      } as unknown as StorageEntryMetadataLatest,
+      } as StorageEntryMetadataLatest,
       method,
       prefix: 'Substrate',
       section: 'substrate'