Revert "Add SampleApp support to GN-win"

This reverts commit a70558e2bb161838b04bdddb5fdac7293ec33f7c.

Reason for revert: 

cmd /c c:\b\s\w\ireutzd9\t\depot_tools\win_toolchain\vs_files\95ddda401ec5678f15eeed01d2bee08fcbc5ee97/win_sdk/bin/SetEnv.cmd /x86 && c:\b\s\w\ireutzd9\t\depot_tools\win_toolchain\vs_files\95ddda401ec5678f15eeed01d2bee08fcbc5ee97/VC/bin/amd64_x86/cl.exe /nologo /showIncludes /FC @obj/samplecode/SampleApp.SampleApp.obj.rsp /c ../../../samplecode/SampleApp.cpp /Foobj/samplecode/SampleApp.SampleApp.obj /Fd"obj/SampleApp_c.pdb"
c:\b\work\skia\include\views\skoswindow_win.h(18): fatal error C1083: Cannot open include file: 'EGL/egl.h': No such file or directory

I think this is restricted to just 32-bit Windows builds?

Original change's description:
> Add SampleApp support to GN-win
> 
> BUG=skia:
> 
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4062
> 
> Change-Id: I88b10748b49adbf57f247b51eec1b9ca86377800
> Reviewed-on: https://skia-review.googlesource.com/4062
> Reviewed-by: Mike Klein <mtklein@chromium.org>
> Reviewed-by: Cary Clark <caryclark@google.com>
> Commit-Queue: Jim Van Verth <jvanverth@google.com>
> 

TBR=mtklein@chromium.org,mtklein@google.com,jvanverth@google.com,caryclark@google.com,reed@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: Iba39bab6d3a07a437a86343599e51485d8f4ce93
Reviewed-on: https://skia-review.googlesource.com/4070
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Mike Klein <mtklein@chromium.org>
2 files changed