Remove x11rdp from config

as it is already deprecated. x11rdp is complicated to build and very few
people using it actually. However, some people still select "X11rdp"
session and get stuck despite not installing x11rdp.

https://github.com/neutrinolabs/xrdp/issues/962#issuecomment-430545526

People who really want to use x11rdp should revert this commit.

sesman/sesman.ini.in

@@ -90,13 +90,6 @@ param=tcp
 param=-logfile
 param=.xorgxrdp.%s.log
 
-[X11rdp]
-param=X11rdp
-param=-bs
-param=-nolisten
-param=tcp
-param=-uds
-
 [Xvnc]
 param=Xvnc
 param=-bs

xrdp/xrdp.ini.in

@@ -162,16 +162,6 @@ ip=127.0.0.1
 port=-1
 code=20
 
-[X11rdp]
-name=X11rdp
-lib=libxup.@lib_extension@
-username=ask
-password=ask
-ip=127.0.0.1
-port=-1
-xserverbpp=24
-code=10
-
 [Xvnc]
 name=Xvnc
 lib=libvnc.@lib_extension@