Improved readability of issues related MR status spec

spec/views/projects/issues/_merge_requests_status.html.haml_spec.rb

+# frozen_string_literal: true
 require 'spec_helper'
 
 describe 'projects/issues/_merge_requests_status.html.haml' do
@@ -11,7 +12,7 @@ describe 'projects/issues/_merge_requests_status.html.haml' do
   end
 
   it 'shows only status in tooltip if date is not set' do
-    merge_request = create(:merge_request, created_at: 1.month.ago, state: :closed)
+    merge_request = create(:merge_request, state: :closed)
 
     render partial: 'projects/issues/merge_requests_status',
            locals: { merge_request: merge_request, css_class: '' }