Treacherous copy/paste!

configure

@@ -20098,9 +20098,6 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
 
                 have_xrandr_h_hdr=yes
-                $as_echo "#define SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH 1" >>confdefs.h
-
-                SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

configure.in

@@ -1518,8 +1518,6 @@ AC_HELP_STRING([--enable-video-x11-xrandr], [enable X11 Xrandr extension for ful
                 XRRScreenResources *res = NULL;
                 ],[
                 have_xrandr_h_hdr=yes
-                AC_DEFINE(SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH)
-                SUMMARY_video_x11="${SUMMARY_video_x11} xinput2_multitouch"
                 ])
                 if test x$have_xrandr_h_hdr = xyes; then
                     if test x$enable_x11_shared = xyes && test x$xrandr_lib != x ; then