Remove epics policy tests to avoid conflicts with ce

spec/policies/group_policy_spec.rb

@@ -26,7 +26,6 @@ describe GroupPolicy do
       :admin_namespace,
       :admin_group_member,
       :change_visibility_level,
-      :destroy_epic,
       (Gitlab::Database.postgresql? ? :create_subgroup : nil)
     ].compact
   end
@@ -49,20 +48,6 @@ describe GroupPolicy do
     permissions.each { |p| is_expected.not_to be_allowed(p) }
   end
 
-  context 'with epics feature disabled' do
-    let(:current_user) { owner }
-
-    it 'does not allow to read or manage epics'  do
-      expect_disallowed(:read_epic)
-    end
-  end
-
-  context 'with epics feature enabled' do
-    before do
-      allow(License).to receive(:feature_available?).and_call_original
-      allow(License).to receive(:feature_available?).with(:epics).and_return(true)
-    end
-
   context 'with no user' do
     let(:current_user) { nil }
 
@@ -462,5 +447,4 @@ describe GroupPolicy do
       it { expect_disallowed(:change_share_with_group_lock) }
     end
   end
-  end
 end