remove (unused) vertical-text

Bug: skia:8487
Change-Id: Ia6715346a0214b0db2fc67294e45b5e04c1c24d8
Reviewed-on: https://skia-review.googlesource.com/c/163889
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Herb Derby <herb@google.com>
23 files changed