Revert "Fetch clang-format automatically when compiling .fp files."

This reverts commit a25422faa462e8cfb00af1a3818547abbbb9c7f9.

Reason for revert: breaks Windows build

Original change's description:
> Fetch clang-format automatically when compiling .fp files.
> 
> On a freshly fetched repo, setting `skia_compile_processors = true` will
> fail to compile because clang-format is missing from the bin directory.
> This CL automatically runs fetch-clang-format for you when clang-format
> is absent.
> 
> Change-Id: Ieeb359176072e92ca235316c820310333732f608
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/295780
> Reviewed-by: Mike Klein <mtklein@google.com>
> Commit-Queue: John Stiles <johnstiles@google.com>

TBR=mtklein@google.com,johnstiles@google.com

Change-Id: If6412e74a16aa515c223d5d4f326780c8a69766f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/295832
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
3 files changed