Cosmetics: remove stray yes

This removes result for check on cups,
it is required as other checkers already print yes/no during the
test, even if it seems like the command is now "unresulted".

configure.in

@@ -2378,7 +2378,6 @@ if test "$test_cups" = "yes"; then
     if test "$ac_cv_lib_cups_cupsPrintFiles" != "yes" -a "$ac_cv_header_cups_cups_h" != "yes"; then
         AC_MSG_ERROR([Could not find CUPS. Install libcupsys2-dev or cups???-devel.])
     fi
-    AC_MSG_RESULT([yes])
 fi