deletes: "before all" hook for "should delete column from a row" failed

[flaky-bot]

Note: #1104 was also for this test, but it was closed more than 10 days ago. So, I didn't mark it flaky.

---

commit: e14992b
buildURL: Build Status, Sponge
status: failed

Test output

14 UNAVAILABLE: The service is currently unavailable.
/workspace/node_modules/@grpc/grpc-js/src/call.ts:82
  const error = new Error(message);
                ^
Error: 14 UNAVAILABLE: The service is currently unavailable.

at null.callErrorFromStatus (/workspace/node_modules/@grpc/grpc-js/src/call.ts:82:17)

at Object.onReceiveStatus (/workspace/node_modules/@grpc/grpc-js/src/client.ts:360:55)

at Object.onReceiveStatus (/workspace/node_modules/@grpc/grpc-js/src/client-interceptors.ts:458:34)

at Object.onReceiveStatus (/workspace/node_modules/@grpc/grpc-js/src/client-interceptors.ts:419:48)

at null. (/workspace/node_modules/@grpc/grpc-js/src/resolving-call.ts:132:24)

at processTicksAndRejections (internal/process/task_queues.js:77:11)

for call at

let callerStackError: Error | null = new Error();

^
Error

at ServiceClientImpl.makeUnaryRequest (/workspace/node_modules/@grpc/grpc-js/src/client.ts:325:42)

at ServiceClientImpl. (/workspace/node_modules/@grpc/grpc-js/src/make-client.ts:189:15)

at null. (/workspace/src/v2/bigtable_instance_admin_client.ts:413:25)

at /workspace/node_modules/google-gax/build/src/normalCalls/timeout.js:44:16

at LongrunningApiCaller._wrapOperation (/workspace/node_modules/google-gax/build/src/longRunningCalls/longRunningApiCaller.js:55:16)

at /workspace/node_modules/google-gax/build/src/longRunningCalls/longRunningApiCaller.js:46:25

at OngoingCall.call (/workspace/node_modules/google-gax/build/src/call.js:67:27)

at LongrunningApiCaller.call (/workspace/node_modules/google-gax/build/src/longRunningCalls/longRunningApiCaller.js:45:19)

at /workspace/node_modules/google-gax/build/src/createApiCall.js:84:30

at processTicksAndRejections (internal/process/task_queues.js:95:5)