tests: ack/modack spans don't get an operation currently; we should look at that in a separate PR if it's problematic

Author: feywind

test/telemetry-tracing.ts

@@ -424,10 +424,6 @@ describe('OpenTelemetryTracer', () => {
         firstSpan.attributes['messaging.destination.name'],
         subName,
       );
-      assert.strictEqual(
-        firstSpan.attributes['messaging.operation'],
-        'receive',
-      );
       assert.strictEqual(
         firstSpan.attributes['messaging.batch.message_count'],
         1,
@@ -470,10 +466,6 @@ describe('OpenTelemetryTracer', () => {
         firstSpan.attributes['messaging.destination.name'],
         subName,
       );
-      assert.strictEqual(
-        firstSpan.attributes['messaging.operation'],
-        'receive',
-      );
       assert.strictEqual(
         firstSpan.attributes[
           'messaging.gcp_pubsub.message.ack_deadline_seconds'