build: disable race detector test in run.bat on windows

CL 64170043 disabled it in run.bash for Unix systems.
I did not realize Windows systems also ran the race detector test.

TBR=iant
CC=golang-codereviews
https://golang.org/cl/64480043

src/run.bash

@@ -57,7 +57,8 @@ go test sync -short -timeout=$(expr 120 \* $timeout_scale)s -cpu=10
 
 # Race detector only supported on Linux and OS X,
 # and only on amd64, and only when cgo is enabled.
-# Disabled due to golang.org/issue/7334; remove XXX below to reenable.
+# Disabled due to golang.org/issue/7334; remove XXX below
+# and in run.bat to reenable.
 case "$GOHOSTOS-$GOOS-$GOARCH-$CGO_ENABLED" in
 XXXlinux-linux-amd64-1 | XXXdarwin-darwin-amd64-1)
 	echo

src/run.bat

@@ -52,7 +52,11 @@ go test sync -short -timeout=120s -cpu=10
 if errorlevel 1 goto fail
 echo.
 
-if not "%GOHOSTOS%-%GOOS%-%GOARCH%-%CGO_ENABLED%" == "windows-windows-amd64-1" goto norace
+# Race detector only supported on Linux and OS X,
+# and only on amd64, and only when cgo is enabled.
+# Disabled due to golang.org/issue/7334; remove XXX below
+# and in run.bash to reenable.
+if not "%GOHOSTOS%-%GOOS%-%GOARCH%-%CGO_ENABLED%" == "XXXwindows-windows-amd64-1" goto norace
 echo # Testing race detector.
 go test -race -i runtime/race flag
 if errorlevel 1 goto fail