runtime: fix windows build

R=golang-dev
CC=golang-dev
https://golang.org/cl/4052046

diff --git a/src/pkg/runtime/windows/thread.c b/src/pkg/runtime/windows/thread.c
index 585f6fc592700da5c37dcce799e5788127dd44d9..605e28af29d288f2cd48851b312bb83223f80b33 100644 (file)
--- a/src/pkg/runtime/windows/thread.c
+++ b/src/pkg/runtime/windows/thread.c
@@ -298,8 +298,6 @@ runtime·compilecallback(byte *code, void *fn, uint32 argsize)
        *p = 0xd0;
 }
 
-enum { StackGuard = 2048 }; // defined in proc.c
-
 #pragma textflag 7
 void*
 runtime·callback(void *arg, void (*fn)(void), int32 argsize)