Remove SkFastMin32

SkFastMin32 has been the same as SkMin32 since commit 38bad32cf52 "fold
SK_CPU_HAS_CONDITION_INSTR through as always defined" was submitted in
July 2013 as per https://chromiumcodereview.appspot.com/21122005

TBR=hcm@google.com
The only change to the public API is removing a redundant helper from
SkTypes.h

Bug: skia:
Change-Id: Ic6f7c7dc5612e8b7b1be3923f572ffcc13555d75
Reviewed-on: https://skia-review.googlesource.com/144242
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
5 files changed