Aura: Don't create GL context for CreateSharedSurfaceHandle()

The context is used for blocking renders that are trying to create
 a context after the GPU process crashed through comparing
 gpu process IDs.

Remove this code as we can handle SwapCompositorFrame
 more gracefully nowadays after resources were lost.
 But still fail renderer view context creation when
 gpu browser compositing gets turned off.

BUG=270179

Review URL: https://codereview.chromium.org/111063003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241425 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241425