Remove duplicate of bucket_requests.cc from BuildGoogleClient.cmake (GONRG-1256)

Fix GS connection string sample section look.

Type of change

• [X ] Bug Fix
• Feature

Does this introduce a change in the core logic?

• [NO]

Does this introduce a change in the cloud provider implementation, if so which cloud?

• AWS
• Azure
• GCP
• IBM

Does this introduce a breaking change?

• [NO]

What is the current behavior?

The file bucket_requests.cc is mentioned into BuildGoogleClient.cmake list twice.

What is the new/expected behavior?

There are no duplicates of bucket_requests.cc into BuildGoogleClient.cmake.

Have you added/updated Unit Tests and Integration Tests?

• [NO]

Changes:

The duplicate of bucket_requests.cc was removed from BuildGoogleClient.cmake.