simplify GetCaseReducers

Author: EskiMojo14

packages/toolkit/src/createSlice.ts

@@ -507,17 +507,8 @@ type CreatorCallback<
 ) => Record<string, ReducerDefinition>
 
 type GetCaseReducers<
-  State,
-  Name extends string,
-  ReducerPath extends string,
-  CreatorMap extends Record<string, RegisteredReducerType>,
-  CR extends
-    | SliceCaseReducers<State>
-    | CreatorCallback<State, Name, ReducerPath, CreatorMap>,
-> =
-  CR extends CreatorCallback<State, Name, ReducerPath, CreatorMap>
-    ? ReturnType<CR>
-    : CR
+  CR extends SliceCaseReducers<any> | CreatorCallback<any, any, any, any>,
+> = CR extends CreatorCallback<any, any, any, any> ? ReturnType<CR> : CR
 
 /**
  * Options for `createSlice()`.
@@ -916,13 +907,7 @@ export function buildCreateSlice<
       Selectors,
       CreatorMap
     >,
-  ): Slice<
-    State,
-    GetCaseReducers<State, Name, ReducerPath, CreatorMap, CaseReducers>,
-    Name,
-    ReducerPath,
-    Selectors
-  > {
+  ): Slice<State, GetCaseReducers<CaseReducers>, Name, ReducerPath, Selectors> {
     const { name, reducerPath = name as unknown as ReducerPath } = options
     if (!name) {
       throw new Error('`name` is a required option for createSlice')
@@ -1119,7 +1104,7 @@ export function buildCreateSlice<
     ): Pick<
       Slice<
         State,
-        GetCaseReducers<State, Name, ReducerPath, CreatorMap, CaseReducers>,
+        GetCaseReducers<CaseReducers>,
         Name,
         CurrentReducerPath,
         Selectors