cmd/compile/internal/gc: minor code reorg (cleanup)

Found while tracking down #26855.

Change-Id: Ice137fe390820ba351e1c7439b6a9a1b3bdc966b
Reviewed-on: https://go-review.googlesource.com/136396
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>

src/cmd/compile/internal/gc/fmt.go

@@ -1304,16 +1304,14 @@ func (n *Node) exprfmt(s fmt.State, prec int, mode fmtMode) {
 		mode.Fprintf(s, "%v { %v }", n.Type, n.Func.Closure.Nbody)
 
 	case OCOMPLIT:
-		ptrlit := n.Right != nil && n.Right.Implicit() && n.Right.Type != nil && n.Right.Type.IsPtr()
 		if mode == FErr {
 			if n.Right != nil && n.Right.Type != nil && !n.Implicit() {
-				if ptrlit {
+				if n.Right.Implicit() && n.Right.Type.IsPtr() {
 					mode.Fprintf(s, "&%v literal", n.Right.Type.Elem())
 					return
-				} else {
-					mode.Fprintf(s, "%v literal", n.Right.Type)
-					return
 				}
+				mode.Fprintf(s, "%v literal", n.Right.Type)
+				return
 			}
 
 			fmt.Fprint(s, "composite literal")