Revert "Remove non-smart SkFontConfigInterface::SetGlobal."

This reverts commit 31aa27da9dcb835cba04918a2d4db921d3552881.

Reason for revert: breaks a build and forgot to remove declaration

Original change's description:
> Remove non-smart SkFontConfigInterface::SetGlobal.
> 
> This method is no longer used and is superseded by the 'smart' version.
> 
> Change-Id: I491dda095224d443d184e8d73b36b1328227c99e
> Reviewed-on: https://skia-review.googlesource.com/128312
> Reviewed-by: Herb Derby <herb@google.com>
> Commit-Queue: Ben Wagner <bungeman@google.com>

TBR=bungeman@google.com,herb@google.com

Change-Id: Ie0fb3dc055d01cf7e3a4ec83fb92de33c07a7f58
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/128360
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
1 file changed