[svchost][devmgr][miscsvc] Revert: Add miscsvc

This reverts commit 1423535d.

Reason for revert: OTA broke, this CL is a dependent on the change that breaks OTA

Original change's description:
> [svchost][devmgr][miscsvc] Add miscsvc
> 
> Startup a miscsvc binary, and provide a channel to it's '/svc/
> directory to svchost, which will then forward it services.
> 
> To start miscsvc only implements the paver service.
> 
> ZX-3861
> 
> Change-Id: Id411227e4c3d2b8add49978cf6ce1a76de509a48

TBR=teisenbe@google.com,abarth@google.com,shayba@google.com,surajmalhotra@google.com

Change-Id: I63906a5e8061fd2f5eb69bb5894533d6239127a2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true