xwayland: Staticize weston_wm_set_selection and read_and_dump_property

Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>

src/xwayland/selection.c

@@ -616,7 +616,7 @@ weston_wm_handle_selection_event(struct weston_wm *wm,
 	return 0;
 }
 
-void
+static void
 weston_wm_set_selection(struct wl_listener *listener, void *data)
 {
 	struct wl_seat *seat = data;

src/xwayland/window-manager.c

@@ -268,7 +268,7 @@ dump_property(struct weston_wm *wm,
 	}
 }
 
-void
+static void
 read_and_dump_property(struct weston_wm *wm,
 		       xcb_window_t window, xcb_atom_t property)
 {

src/xwayland/xwayland.h

@@ -128,9 +128,6 @@ struct weston_wm {
 void
 dump_property(struct weston_wm *wm, xcb_atom_t property,
 	      xcb_get_property_reply_t *reply);
-void
-read_and_dump_property(struct weston_wm *wm,
-		       xcb_window_t window, xcb_atom_t property);
 
 const char *
 get_atom_name(xcb_connection_t *c, xcb_atom_t atom);
@@ -141,9 +138,6 @@ int
 weston_wm_handle_selection_event(struct weston_wm *wm,
 				 xcb_generic_event_t *event);
 
-void
-weston_wm_set_selection(struct wl_listener *listener, void *data);
-
 extern const struct xserver_interface xserver_implementation;
 
 struct weston_wm *