Fix missing SConscript warning when building using SCons

modules/gdnative/SCsub

@@ -17,7 +17,6 @@ env_gdnative.Prepend(CPPPATH=["#modules/gdnative/include/"])
 Export("env_gdnative")
 
 SConscript("net/SCsub")
-SConscript("xr/SCsub")
 SConscript("pluginscript/SCsub")
 SConscript("videodecoder/SCsub")
 SConscript("text/SCsub")