Add Bus::remove_watch()

It was accidentially ignored before

Gir_Gst.toml

@@ -116,11 +116,6 @@ status = "generate"
 name = "Gst.Bus"
 status = "generate"
 trait = false
-    [[object.function]]
-    name = "remove_watch"
-    # Needs manual bindings and GSource support in glib-rs
-    ignore = true
-
     [[object.function]]
     name = "add_signal_watch_full"
     # Priority

gstreamer/src/auto/bus.rs

@@ -98,6 +98,12 @@ impl Bus {
         }
     }
 
+    pub fn remove_watch(&self) -> bool {
+        unsafe {
+            from_glib(ffi::gst_bus_remove_watch(self.to_glib_none().0))
+        }
+    }
+
     pub fn set_flushing(&self, flushing: bool) {
         unsafe {
             ffi::gst_bus_set_flushing(self.to_glib_none().0, flushing.to_glib());