Remove shader caps argument from GrGLSLTypeString

Bug: skia:
Change-Id: I5a848055b5d59df24365992dcd259ec9bd0f8c61
Reviewed-on: https://skia-review.googlesource.com/c/192083
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
4 files changed