Revert "[trace-manager] Pass on verbosity to configured providers"

This reverts commit 5a615f0f.

Reason for revert: trying to check if this broke the build

Original change's description:
> [trace-manager] Pass on verbosity to configured providers
> 
> ... and add VLOG message to perfmon event processing
> 
> Change-Id: I3029a9c97a8c2710025d5e435fccf508e168f156

TBR=dje@google.com,abarth@google.com,bhamrick@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: I6e36f51679f77f01024f9f91a36fbacd3d3d655e