[webui] Refactor User#incoming_requests

- Remove duplicate with_actions and in_states call
- Remove variables

src/api/app/models/user.rb

@@ -752,12 +752,9 @@ def declined_requests(search = nil)
 
   # list incoming requests involving this user
   def incoming_requests(search = nil)
-    project_ids = involved_projects.pluck(:id)
-    package_ids = involved_packages.pluck(:id)
-
-    result = BsRequest.with_actions.with_involved_projects(project_ids)
-                      .or(BsRequest.with_actions.with_involved_packages(package_ids))
-                      .in_states(:new)
+    result = BsRequest.with_involved_projects(involved_projects.pluck(:id)).or(
+      BsRequest.with_involved_packages(involved_packages.pluck(:id))
+    ).with_actions.in_states(:new)
 
     search ? result.do_search(search) : result
   end