[vala/0.50] Correct Bindings NEWS for 0.50.4

[Rico Tzschichholz <ricotz src gnome org>]

commit 8f4e7daa8cee33a15caac2d35053d944ed57b5df
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Sat Mar 13 21:19:09 2021 +0100

    Correct Bindings NEWS for 0.50.4

 NEWS | 4 ----
 1 file changed, 4 deletions(-)
---
diff --git a/NEWS b/NEWS
index 94746d03d..40e84811b 100644
--- a/NEWS
+++ b/NEWS
@@ -57,10 +57,6 @@ Vala 0.50.4
   - gio-2.0: Fix binding of PollableOutputStream.write*_nonblocking()
   - gio-2.0,gtk+-3.0,gtk4: Drop explicit c-type attributes of va_list parameters
   - gio-2.0: Pick up missing invoker for some AppInfo/File.*() methods
-  - glib-2.0: Add GLib.[S]List.is_empty() convenience methods for non-null
-  - glib-2.0: Bind assert_cmp* functions [#395]
-  - glib-2.0: Improve type of OptionEntry.flags field
-  - glib-2.0: Make PtrArray a subclass of GenericArray
   - gstreamer-1.0: Set CCode.type_id of MiniObject to G_TYPE_BOXED [#1133]
   - gtk+-2.0,javascriptcoregtk-4.0: Wrong usage of CCode.type_cname attribute
   - gtk+-3.0,gtk4: Fix some delegate return values and parameters