Fix an m4 overquoting triggering a spurious 'AS_TR_CPP' symbol definition

attempt in generated config.h

ares/configure.ac

@@ -749,7 +749,7 @@ AC_CHECK_FUNCS([bitncmp \
   ],[
     AC_MSG_RESULT([yes])
     eval "ac_cv_func_$func=yes"
-    AC_DEFINE_UNQUOTED([AS_TR_CPP([HAVE_$func])], [1],
+    AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$func]), [1],
       [Define to 1 if you have the $func function.])
   ],[
     AC_MSG_RESULT([but still no])

configure.ac

@@ -2105,7 +2105,7 @@ AC_CHECK_FUNCS([basename \
     ],[
       AC_MSG_RESULT([yes])
       eval "ac_cv_func_$func=yes"
-      AC_DEFINE_UNQUOTED([AS_TR_CPP([HAVE_$func])], [1],
+      AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_$func]), [1],
         [Define to 1 if you have the $func function.])
     ],[
       AC_MSG_RESULT([but still no])