build: remove AC_CONFIG_AUX_DIR macro

This was used during testing and should have been removed.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>

configure.in

@@ -2,7 +2,6 @@ AC_PREREQ(2.60)
 AC_INIT([openocd], [0.5.0-dev],
   [OpenOCD Mailing List <openocd-development@lists.berlios.de>])
 AC_CONFIG_SRCDIR([src/openocd.c])
-AC_CONFIG_AUX_DIR([.])
 
 m4_include(config_subdir.m4)dnl