Remove MSVC build files that grit used to use. These have

tools/grit/build/grit_resource_file.bat

Index: tools/grit/build/grit_resource_file.bat
diff --git a/tools/grit/build/grit_resource_file.bat b/tools/grit/build/grit_resource_file.bat
deleted file mode 100644
index bc5af2113a5850fd13aff54619e62cc3470da129..0000000000000000000000000000000000000000
--- a/tools/grit/build/grit_resource_file.bat
+++ /dev/null
@@ -1,32 +0,0 @@
-:: Batch file run as build command for .grd files
-:: The custom build rule is set to expect (inputfile).h and (inputfile).rc
-:: our grd files must generate files with the same basename.
-@echo off
-
-setlocal
-
-set InFile=%~1
-set SolutionDir=%~2
-set OutDir=%~3
-
-:: We treat the next five args as preprocessor defines for grit.
-set PreProc1=%~4
-set PreProc2=%~5
-set PreProc3=%~6
-set PreProc4=%~7
-set PreProc5=%~8
-
-IF NOT EXIST %OutDir% (
-mkdir %OutDir%
-)
-
-IF NOT (%PreProc1%)==() set PreProc1=-D %PreProc1%
-IF NOT (%PreProc2%)==() set PreProc2=-D %PreProc2%
-IF NOT (%PreProc3%)==() set PreProc3=-D %PreProc3%
-IF NOT (%PreProc4%)==() set PreProc4=-D %PreProc4%
-IF NOT (%PreProc5%)==() set PreProc5=-D %PreProc5%
-
-:: Put cygwin in the path
-call %SolutionDir%\..\third_party\cygwin\setup_env.bat
-
-%SolutionDir%\..\third_party\python_24\python.exe %SolutionDir%\..\tools\grit\grit.py -i %InFile% build -o %OutDir% %PreProc1% %PreProc2% %PreProc3% %PreProc4% %PreProc5%