runtime: remove out-of-date comment

An out-of-date comment snuck in to cc8f544. Remove it.

Change-Id: I5bc7c17e737d1cabe57b88de06d7579c60ca28ff
Reviewed-on: https://go-review.googlesource.com/12328
Reviewed-by: Matthew Dempsky <mdempsky@google.com>

diff --git a/src/runtime/mgcsweep.go b/src/runtime/mgcsweep.go
index acad55e7771da9ab1bffe15ec7de555d9c9c9d0e..800e919827785c42415f8cd1bd78302c1876ffd4 100644 (file)
--- a/src/runtime/mgcsweep.go
+++ b/src/runtime/mgcsweep.go
@@ -170,7 +170,7 @@ func mSpan_Sweep(s *mspan, preserve bool) bool {
        cl := s.sizeclass
        size := s.elemsize
        res := false
-       nfree := 0 // Set to -1 for large span
+       nfree := 0
 
        var head, end gclinkptr