Make "user edits issue" labels feature spec less flaky

spec/features/issues/user_edits_issue_spec.rb

@@ -146,8 +146,7 @@ RSpec.describe "Issues > User edits issue", :js do
           fill_in 'Comment', with: '/label ~syzygy'
 
           click_button 'Comment'
-
-          wait_for_requests
+          expect(page).to have_text('added syzygy label just now')
 
           page.within '.block.labels' do
             # Remove `verisimilitude` label
@@ -155,8 +154,6 @@ RSpec.describe "Issues > User edits issue", :js do
               click_button
             end
 
-            wait_for_requests
-
             expect(page).to have_text('syzygy')
             expect(page).not_to have_text('verisimilitude')
           end