chore: Remove Query Filter (#9403)

**What**
Cleanup old QueryFilter

packages/core/utils/src/modules-sdk/index.ts

@@ -16,6 +16,5 @@ export * from "./migration-scripts"
 export * from "./mikro-orm-cli-config-builder"
 export * from "./module"
 export * from "./query-context"
-export * from "./query-filter"
 export * from "./types/links-config"
 export * from "./types/medusa-service"

packages/core/utils/src/modules-sdk/query-filter.ts

@@ -1,18 +0,0 @@
-import { RemoteQueryFilters } from "@medusajs/types"
-
-const __type = "QueryFilter"
-
-export function QueryFilterFn<TEntry extends string>(
-  query: RemoteQueryFilters<TEntry>
-): RemoteQueryFilters<TEntry> & { __type: "QueryFilter" } {
-  return {
-    ...query,
-    __type,
-  }
-}
-
-QueryFilterFn.isQueryFilter = (obj: any) => {
-  return obj.__type === __type
-}
-
-export const QueryFilter = QueryFilterFn