Fix double _get_tracking_status declaration

doc/classes/XRInterfaceExtension.xml

@@ -81,11 +81,6 @@
 			<description>
 			</description>
 		</method>
-		<method name="_get_tracking_status" qualifiers="virtual const">
-			<return type="int" />
-			<description>
-			</description>
-		</method>
 		<method name="_get_transform_for_view" qualifiers="virtual">
 			<return type="Transform3D" />
 			<argument index="0" name="view" type="int" />

servers/xr/xr_interface_extension.cpp

@@ -41,8 +41,6 @@ void XRInterfaceExtension::_bind_methods() {
 	GDVIRTUAL_BIND(_initialize);
 	GDVIRTUAL_BIND(_uninitialize);
 
-	GDVIRTUAL_BIND(_get_tracking_status);
-
 	GDVIRTUAL_BIND(_supports_play_area_mode, "mode");
 	GDVIRTUAL_BIND(_get_play_area_mode);
 	GDVIRTUAL_BIND(_set_play_area_mode, "mode");