Revert "tst-res_hconf_reorder: Set RESOLV_REORDER environment variable"

This reverts commit 731a713.

This change is unnecessary because the Makefile already sets up the
environment for the test.

ChangeLog

@@ -1,8 +1,3 @@
-2015-12-04  Florian Weimer  <fweimer@redhat.com>
-
-	* resolv/tst-res_hconf_reorder.c (do_test): Set RESOLV_REORDER
-	environment variable.
-
 2015-12-04  Paul Eggert  <eggert@cs.ucla.edu>
 
 	Consistency about byte vs character in string.texi

resolv/tst-res_hconf_reorder.c

@@ -71,9 +71,6 @@ do_test (void)
   unsigned int i;
   int result = 0;
 
-  /* Enabled code to be tested.  */
-  setenv ("RESOLV_REORDER", "on", 1);
-
   /* turn on realloc slowdown */
   ts.tv_nsec = 100000000;