[MIPS] Restore the trusted stack in NaClSyscallSeg.

src/trusted/service_runtime/linux/mips/sel_segments.c

Index: src/trusted/service_runtime/linux/mips/sel_segments.c
diff --git a/src/trusted/service_runtime/linux/mips/sel_segments.c b/src/trusted/service_runtime/linux/mips/sel_segments.c
index 3ac94017f1908619a84d4691725fc09dd516bbfc..c0a3136d50797eea9bbe2bfce3deddede843ada6 100644
--- a/src/trusted/service_runtime/linux/mips/sel_segments.c
+++ b/src/trusted/service_runtime/linux/mips/sel_segments.c
@@ -1,7 +1,7 @@
 /*
- * Copyright 2012 The Native Client Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can
- * be found in the LICENSE file.
+ * Copyright (c) 2012 The Native Client Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
  */
 
 #include <stdint.h>
@@ -15,11 +15,3 @@ uint32_t NaClGetStackPtr(void) {
   return sp;
 }
 
-uint32_t NaClGetGlobalPtr(void) {
-  uint32_t gp;
-
-  asm("move %0, $gp" : "=r" (gp));
-
-  return gp;
-}
-