remove map() from SkRasterPipeline_opts.h

It seems to be confusing some obscure build configuration in Google3.
I don't really mind writing these out longform.

Change-Id: I78e82d9fa18726d89d206e692fd260317c5f8686
Reviewed-on: https://skia-review.googlesource.com/131108
Auto-Submit: Mike Klein <mtklein@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Florin Malita <fmalita@chromium.org>
1 file changed