[PATCH, libgfortran]: Remove unused variable

[Uros Bizjak]

Hello!

2014-11-25  Uros Bizjak  <ubizjak@gmail.com>

    * intrinsics/env.c (getenv): Remove unused variable res_len.

Bootstrapped on x86_64-linux-gnu.

Almost trivial, but ... OK for mainline?

Uros.

Index: intrinsics/env.c
===================================================================
--- intrinsics/env.c    (revision 218056)
+++ intrinsics/env.c    (working copy)
@@ -42,7 +42,6 @@ PREFIX(getenv) (char * name, char * value, gfc_cha
 {
   char *name_nt;
   char *res = NULL;
-  int res_len;

   if (name == NULL || value == NULL)
     runtime_error ("Both arguments to getenv are mandatory.");