cmd/compile: simplify exportsym debug message

No need to disambiguate if we're exporting or reexporting, because
it's obvious from the output.

Change-Id: I59053d34dc6f8b29e20749c7b03c3cb4f4d641ff
Reviewed-on: https://go-review.googlesource.com/104236Reviewed-by: Robert Griesemer <gri@golang.org>

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

@@ -36,11 +36,7 @@ func exportsym(n *Node) {
 	n.Sym.SetOnExportList(true)
 
 	if Debug['E'] != 0 {
-		if n.Sym.Pkg == localpkg {
-			fmt.Printf("export symbol %v\n", n.Sym)
-		} else {
-			fmt.Printf("reexport name %v\n", n.Sym)
-		}
+		fmt.Printf("export symbol %v\n", n.Sym)
 	}
 
 	exportlist = append(exportlist, n)