Remove prompt to repair Cog workspace

When builds are run from the Cider UI, the prompt will cause the command to hang.

See the comments in aosp/3274365 for reasons why doing this automatically is not a concern: https://screenshot.googleplex.com/3vavnYbzqQSQ5Tu

Bug: 362337892
Change-Id: Ic8e4567af5a5c99d4c345410622ccb1e2fcee330