cmd/compile/internal/gc: remove unparen

CL 197120 removed the last use of it.

Change-Id: I5fe4f57a47acc712208d831e72cd79205a534c28
Reviewed-on: https://go-review.googlesource.com/c/go/+/252697
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

diff --git a/src/cmd/compile/internal/gc/noder.go b/src/cmd/compile/internal/gc/noder.go
index 590c1a16de9a448ff59b9c04c1153f990bba6aca..5dce533e4b7e791d08f0632c11d76113cbc9c33b 100644 (file)
--- a/src/cmd/compile/internal/gc/noder.go
+++ b/src/cmd/compile/internal/gc/noder.go
@@ -1641,10 +1641,3 @@ func mkname(sym *types.Sym) *Node {
        }
        return n
 }
-
-func unparen(x *Node) *Node {
-       for x.Op == OPAREN {
-               x = x.Left
-       }
-       return x
-}