runtime: remove darwin/arm specifc code

That port is gone.

Change-Id: I212d435e290d1890d6cd5531be98bb692650595e
Reviewed-on: https://go-review.googlesource.com/c/go/+/254077
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

diff --git a/src/runtime/stack.go b/src/runtime/stack.go
index 403b3c313ef26bd7c77406a211a296bbaaf16657..821c2e84360d3c6df8e28bb23ae879c013e955f3 100644 (file)
--- a/src/runtime/stack.go
+++ b/src/runtime/stack.go
@@ -66,7 +66,7 @@ const (
        // to each stack below the usual guard area for OS-specific
        // purposes like signal handling. Used on Windows, Plan 9,
        // and iOS because they do not use a separate stack.
-       _StackSystem = sys.GoosWindows*512*sys.PtrSize + sys.GoosPlan9*512 + sys.GoosDarwin*sys.GoarchArm*1024 + sys.GoosDarwin*sys.GoarchArm64*1024
+       _StackSystem = sys.GoosWindows*512*sys.PtrSize + sys.GoosPlan9*512 + sys.GoosDarwin*sys.GoarchArm64*1024
 
        // The minimum size of stack used by Go code
        _StackMin = 2048