crash: Point to canonical org.chromium.SessionManagerInterface.xml The session_manager already had a fully-specified .xml file describing its DBus API, so toss the one created for use by crash-reporter.gyp, and point the build to the canonical one. BUG=None TEST=build crash-reporter and run unit tests Change-Id: Id14e1a5a3a2aa7be3caee309c04d85078e43a315 Reviewed-on: https://chromium-review.googlesource.com/267726 Trybot-Ready: Chris Masone <[email protected]> Tested-by: Chris Masone <[email protected]> Reviewed-by: Steve Fung <[email protected]> Commit-Queue: Chris Masone <[email protected]>