Remove unnecessary set_flash.now from controller specs

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

spec/controllers/projects/issues_controller_spec.rb

@@ -806,7 +806,7 @@ describe Projects::IssuesController do
         delete :destroy, namespace_id: project.namespace, project_id: project, id: issue.iid
 
         expect(response).to have_http_status(302)
-        expect(controller).to set_flash[:notice].to(/The issue was successfully deleted\./).now
+        expect(controller).to set_flash[:notice].to(/The issue was successfully deleted\./)
       end
 
       it 'delegates the update of the todos count cache to TodoService' do

spec/controllers/projects/merge_requests_controller_spec.rb

@@ -439,7 +439,7 @@ describe Projects::MergeRequestsController do
         delete :destroy, namespace_id: project.namespace, project_id: project, id: merge_request.iid
 
         expect(response).to have_http_status(302)
-        expect(controller).to set_flash[:notice].to(/The merge request was successfully deleted\./).now
+        expect(controller).to set_flash[:notice].to(/The merge request was successfully deleted\./)
       end
 
       it 'delegates the update of the todos count cache to TodoService' do

spec/controllers/sent_notifications_controller_spec.rb

@@ -23,7 +23,7 @@ describe SentNotificationsController, type: :controller do
         end
 
         it 'sets the flash message' do
-          expect(controller).to set_flash[:notice].to(/unsubscribed/).now
+          expect(controller).to set_flash[:notice].to(/unsubscribed/)
         end
 
         it 'redirects to the login page' do
@@ -83,7 +83,7 @@ describe SentNotificationsController, type: :controller do
         end
 
         it 'sets the flash message' do
-          expect(controller).to set_flash[:notice].to(/unsubscribed/).now
+          expect(controller).to set_flash[:notice].to(/unsubscribed/)
         end
 
         it 'redirects to the issue page' do
@@ -109,7 +109,7 @@ describe SentNotificationsController, type: :controller do
         end
 
         it 'sets the flash message' do
-          expect(controller).to set_flash[:notice].to(/unsubscribed/).now
+          expect(controller).to set_flash[:notice].to(/unsubscribed/)
         end
 
         it 'redirects to the merge request page' do