Fix tests for Drop filename enforcement

spec/services/ci/create_trace_artifact_service_spec.rb

@@ -19,7 +19,7 @@ describe Ci::CreateTraceArtifactService do
         it 'creates trace artifact' do
           expect { subject }.to change { Ci::JobArtifact.count }.by(1)
 
-          expect(job.job_artifacts_trace.read_attribute(:file)).to eq('trace.log')
+          expect(job.job_artifacts_trace.read_attribute(:file)).to eq('sample_trace')
         end
 
         context 'when the job has already had trace artifact' do

spec/uploaders/job_artifact_uploader_spec.rb

@@ -50,22 +50,6 @@ describe JobArtifactUploader do
     end
   end
 
-  describe '#filename' do
-    subject { uploader.filename }
-
-    context 'when artifact file_type is archive' do
-      let(:job_artifact) { create(:ci_job_artifact, :archive) }
-
-      it { is_expected.to be_nil }
-    end
-
-    context 'when artifact file_type is trace' do
-      let(:job_artifact) { create(:ci_job_artifact, :trace) }
-
-      it { is_expected.to eq('trace.log') }
-    end
-  end
-
   context 'file is stored in valid local_path' do
     let(:file) do
       fixture_file_upload(