remove AM_MAINTAINER_MODE macro from development coppies, should only be in release versions

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4976 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/sofia-sip/configure.ac

@@ -29,7 +29,7 @@ AC_SUBST(LIBVER_SOFIA_SIP_UA_GLIB_SOVER, [3]) # CUR-AGE
 SAC_CANONICAL_SYSTEM_CACHE_CHECK
 
 AM_INIT_AUTOMAKE
-AM_MAINTAINER_MODE
+
 AC_CONFIG_HEADERS([config.h])
 
 AC_GNU_SOURCE