Remove path ranges from gpu.

These appear to have been added to handle glyph paths with nvpr and no
longer appear to be used.

Change-Id: Id75e2e85ab837a5808e7641873d217c844cd827c
Reviewed-on: https://skia-review.googlesource.com/117103
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
14 files changed