fix(actions): unnecessary null check

Author: Introvertuous

src/lib/create_middleware.ts

@@ -55,10 +55,6 @@ function createTransformer<S>(
     action
   );
 
-  if (!dispatchedAction) {
-    return null;
-  }
-
   const transformer = transformers[dispatchedAction.type];
   if (!transformer) {
     // logger.log(`No transformation found for ${dispatchedAction.type}`, 'warn');