UCT/GAUDI: Clean unused configuration (openucx#11017)

*UCT/GAUDI: Clean unused configuration

Author: yihuaxu

src/uct/gaudi/configure.m4

@@ -7,7 +7,5 @@
 UCX_CHECK_GAUDI
 
 AS_IF([test "x$gaudi_happy" = "xyes"], [uct_modules="${uct_modules}:gaudi"])
-uct_gaudi_modules=""
-AC_DEFINE_UNQUOTED([uct_gaudi_MODULES], ["${uct_gaudi_modules}"], [GAUDI loadable modules])
 AC_CONFIG_FILES([src/uct/gaudi/Makefile
                  src/uct/gaudi/ucx-gaudi.pc])