refactor(cloudmeta): simplifies context cancellation checks

pkg/cloudmeta/metadata.go

@@ -87,10 +87,8 @@ func (cloud *CloudMeta) GetInstanceMetadata(ctx context.Context) (InstanceMetada
 		go func(provider CloudMetadataProvider) {
 			meta, err := cloud.runWithTimeout(ctx, provider)
 
-			select {
-			case <-ctx.Done():
+			if ctx.Err() != nil {
 				return
-			default:
 			}
 
 			results <- msg{meta: meta, err: err}
@@ -105,10 +103,8 @@ func (cloud *CloudMeta) GetInstanceMetadata(ctx context.Context) (InstanceMetada
 			return InstanceMetadata{}, ctx.Err()
 		case res := <-results:
 			// Additional context check just in case messages in results and in ctx.Done channels were available at the same time.
-			select {
-			case <-ctx.Done():
-				return InstanceMetadata{}, ctx.Err()
-			default:
+			if err := ctx.Err(); err != nil {
+				return InstanceMetadata{}, err
 			}
 			if res.err != nil {
 				mErr = multierr.Append(mErr, res.err)