cmd/internal/obj: remove unused Textp and Etextp fields

Change-Id: Idcb5a8d6676aa38b4ebd0975edd2068386f5ca83
Reviewed-on: https://go-review.googlesource.com/29449
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

src/cmd/internal/obj/link.go

@@ -703,8 +703,6 @@ type Link struct {
 	Mode          int
 	Cursym        *LSym
 	Version       int
-	Textp         *LSym
-	Etextp        *LSym
 	Errors        int
 
 	Framepointer_enabled bool