Avoid using rm in build batch file

make_all.bat

@@ -1,6 +1,6 @@
 @if "%1"=="quick" goto quick
 @if "%1"=="already_built" goto already_built
-if exist build\. rm -rf build
+if exist build\. rd /s/q build
 if exist build\. goto couldnt_rm
 :quick
 call build_all.bat
@@ -13,16 +13,16 @@ cd ..
 rem Now the binaries.
 
 rem Yuck - 2to3 hackery - must nuke bdist dirs as it may hold py3x syntax.
-if exist build/bdist.win32/. rm -rf build/bdist.win32
-if exist build/bdist.win-amd64/. rm -rf build/bdist.win-amd64
+if exist build/bdist.win32/. rd /s/q build\bdist.win32
+if exist build/bdist.win-amd64/. rd /s/q build\bdist.win-amd64
 py -2.7-32 setup.py -q bdist_wininst --target-version=2.7 --skip-build
 py -2.7-32 setup.py -q bdist_wheel --skip-build
 py -2.7 setup.py -q bdist_wininst --target-version=2.7 --skip-build
 py -2.7 setup.py -q bdist_wheel --skip-build
 
 rem Just incase - re-nuke bdist dirs so 2to3 always runs.
-if exist build/bdist.win32/. rm -rf build/bdist.win32
-if exist build/bdist.win-amd64/. rm -rf build/bdist.win-amd64
+if exist build/bdist.win32/. rd /s/q build\bdist.win32
+if exist build/bdist.win-amd64/. rd /s/q build\bdist.win-amd64
 
 rem *sob* - for some reason 3.5 and later are failing to remove the bdist temp dir
 rem due to the mfc DLLs - but the dir can be removed manually.
@@ -66,8 +66,8 @@ py -3.9 setup.py -q bdist_wininst --skip-build --target-version=3.9
 py -3.9 setup.py -q bdist_wheel --skip-build
 
 rem And nuke the dirs one more time :)
-if exist build/bdist.win32/. rm -rf build/bdist.win32
-if exist build/bdist.win-amd64/. rm -rf build/bdist.win-amd64
+if exist build/bdist.win32/. rd /s/q build\bdist.win32
+if exist build/bdist.win-amd64/. rd /s/q build\bdist.win-amd64
 
 @goto xit
 :couldnt_rm