testsuite] remove dg-do run from a vect test

[Janis Johnson]

The infrastructure for gcc.dg/vect tests determines whether the default
is for tests to be compile-only or compile plus execute.  Tests that
should not be executed use { dg-do compile }, but no test should use
{ dg-do run }.  This patch removes { dg-do run} from pr52298.c.

Tested on arm-none-eabi for default and big-endian, checked in on trunk
as obvious.  I'll backport to 4.6 when the branch is open.

Janis

2012-09-18  Janis Johnson  <jani...@codesourcery.com>

        * gcc.dg/vect/pr52298.c: Remove "dg-do run".

Index: gcc.dg/vect/pr52298.c
===================================================================
--- gcc.dg/vect/pr52298.c       (revision 191440)
+++ gcc.dg/vect/pr52298.c       (working copy)
@@ -1,4 +1,3 @@
-/* { dg-do run } */
 /* { dg-options "-O1 -ftree-vectorize -fno-tree-pre -fno-tree-loop-im" } */
 
 extern void abort (void);