Remove unnecessary pending example

ee/spec/finders/security/vulnerability_findings_finder_spec.rb

@@ -79,22 +79,6 @@ describe Security::VulnerabilityFindingsFinder do
       end
     end
 
-    # FIXME: unskip when this filter is implemented
-    context 'by dismissals' do
-      let!(:dismissal) do
-        create(:vulnerability_feedback, :sast, :dismissal,
-               pipeline: pipeline1,
-               project: project1,
-               project_fingerprint: finding1.project_fingerprint)
-      end
-
-      let(:params) { { hide_dismissed: true } }
-
-      skip 'exclude dismissal' do
-        is_expected.to contain_exactly(finding2, finding3, finding4)
-      end
-    end
-
     context 'by all filters' do
       context 'with found entity' do
         let(:params) { { severity: %w[high medium low], project_id: [project1.id, project2.id], report_type: %w[sast dast] } }