GitLab

Looks like the target_rect param to BindFramebufferToTexture is now
unused. And it looks like UseScopedTexture is entirely unused.
Remove them both.

BUG=
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1633283002

Cr-Commit-Position: refs/heads/master@{#371632}