Remove unused outOffset param in GrTextureAdjuster

Bug: skia:
Change-Id: Ifb5ee9d2d80badf082cf1888d2289fea6344c0e9
Reviewed-on: https://skia-review.googlesource.com/53400
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
4 files changed