refactor: remove redundant filtering in service (calcom#25874)

* refactor: remove redundant filtering and return filtered users from service

* Simplify user retrieval by returning users directly

* Fix formatting issue in users.service.ts

* Filter out null users in getDynamicEventType

---------

Co-authored-by: Anik Dhabal Babu <81948346+anikdhabal@users.noreply.github.com>

Author: meharobaidullah

apps/api/v2/src/modules/users/services/users.service.ts

@@ -28,14 +28,7 @@ export class UsersService {
     const users = await Promise.all(
       usernames.map((username) => this.usersRepository.findByUsername(username, orgSlug, orgId))
     );
-    const usersFiltered: User[] = [];
-
-    for (const user of users) {
-      if (user) {
-        usersFiltered.push(user);
-      }
-    }
-
+    
     return users;
   }