runtime: drop unused workbufhdr.id field

Change-Id: If7729b3c7df6dc7fcd41f293e2ef2472c769fe8b
Reviewed-on: https://go-review.googlesource.com/5261
Reviewed-by: Rick Hudson <rlh@golang.org>

diff --git a/src/runtime/mgcwork.go b/src/runtime/mgcwork.go
index cf5a97957f58d93f1f76109eb5d4937c5e29085f..ac02d35e73d1b26a63a8d5a2852da75eff773061 100644 (file)
--- a/src/runtime/mgcwork.go
+++ b/src/runtime/mgcwork.go
@@ -14,7 +14,6 @@ const (
 type workbufhdr struct {
        node  lfnode // must be first
        nobj  uintptr
-       id    uintptr
        inuse bool       // This workbuf is in use by some gorotuine and is not on the work.empty/partial/full queues.
        log   [4]uintptr // line numbers forming a history of ownership changes to workbuf
 }