xapp_xman: drop optional xprint option

When built with --enable-xprint, xman needs libXaw8 (rather than libXaw7),
which we don't have in buildroot.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/x11r7/xapp_xman/xapp_xman.mk

@@ -13,8 +13,4 @@ XAPP_XMAN_CONF_ENV = ac_cv_file__etc_man_conf=no \
 		ac_cv_file__etc_man_config=no \
 		ac_cv_file__etc_manpath_config=no
 
-ifeq ($(BR2_PACKAGE_XLIB_LIBXPRINTUTIL),y)
-XAPP_XMAN_CONF_OPT += --enable-xprint
-endif
-
 $(eval $(call AUTOTARGETS))