remove log statements from workers

app/workers/create_gpg_signature_worker.rb

@@ -5,15 +5,11 @@ class CreateGpgSignatureWorker
   def perform(commit_sha, project_id)
     project = Project.find_by(id: project_id)
 
-    unless project
-      return Rails.logger.error("CreateGpgSignatureWorker: couldn't find project with ID=#{project_id}, skipping job")
-    end
+    return unless project
 
     commit = project.commit(commit_sha)
 
-    unless commit
-      return Rails.logger.error("CreateGpgSignatureWorker: couldn't find commit with commit_sha=#{commit_sha}, skipping job")
-    end
+    return unless commit
 
     commit.signature
   end

app/workers/invalid_gpg_signature_update_worker.rb

@@ -5,9 +5,7 @@ class InvalidGpgSignatureUpdateWorker
   def perform(gpg_key_id)
     gpg_key = GpgKey.find_by(id: gpg_key_id)
 
-    unless gpg_key
-      return Rails.logger.error("InvalidGpgSignatureUpdateWorker: couldn't find gpg_key with ID=#{gpg_key_id}, skipping job")
-    end
+    return unless gpg_key
 
     Gitlab::Gpg::InvalidGpgSignatureUpdater.new(gpg_key).run
   end

spec/workers/create_gpg_signature_worker_spec.rb

@@ -20,13 +20,6 @@ describe CreateGpgSignatureWorker do
     let(:nonexisting_commit_sha) { 'bogus' }
     let(:project) { create :project }
 
-    it 'logs CreateGpgSignatureWorker process skipping' do
-      expect(Rails.logger).to receive(:error)
-        .with("CreateGpgSignatureWorker: couldn't find commit with commit_sha=bogus, skipping job")
-
-      described_class.new.perform(nonexisting_commit_sha, project.id)
-    end
-
     it 'does not raise errors' do
       expect { described_class.new.perform(nonexisting_commit_sha, project.id) }.not_to raise_error
     end
@@ -41,13 +34,6 @@ describe CreateGpgSignatureWorker do
   context 'when Project is not found' do
     let(:nonexisting_project_id) { -1 }
 
-    it 'logs CreateGpgSignatureWorker process skipping' do
-      expect(Rails.logger).to receive(:error)
-        .with("CreateGpgSignatureWorker: couldn't find project with ID=-1, skipping job")
-
-      described_class.new.perform(anything, nonexisting_project_id)
-    end
-
     it 'does not raise errors' do
       expect { described_class.new.perform(anything, nonexisting_project_id) }.not_to raise_error
     end

spec/workers/invalid_gpg_signature_update_worker_spec.rb

@@ -16,13 +16,6 @@ describe InvalidGpgSignatureUpdateWorker do
   context 'when GpgKey is not found' do
     let(:nonexisting_gpg_key_id) { -1 }
 
-    it 'logs InvalidGpgSignatureUpdateWorker process skipping' do
-      expect(Rails.logger).to receive(:error)
-        .with("InvalidGpgSignatureUpdateWorker: couldn't find gpg_key with ID=-1, skipping job")
-
-      described_class.new.perform(nonexisting_gpg_key_id)
-    end
-
     it 'does not raise errors' do
       expect { described_class.new.perform(nonexisting_gpg_key_id) }.not_to raise_error
     end