Fix RuboCop offense Performance/RedundantEqualityComparisonBlock (#38146).

git-svn-id: https://svn.redmine.org/redmine/trunk@22031 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/integration/api_test/issues_test.rb

@@ -231,7 +231,7 @@ class Redmine::ApiTest::IssuesTest < Redmine::ApiTest::Base
     json = ActiveSupport::JSON.decode(response.body)
     status_ids_used = json['issues'].collect {|j| j['status']['id']}
     assert_equal 3, status_ids_used.length
-    assert status_ids_used.all? {|id| id == 5}
+    assert status_ids_used.all?(5)
   end
 
   test "GET /issues/:id.xml with journals" do