third_party: Remove deprecated zwp wayland interfaces.

third_party/wayland-protocols/unstable/alpha-compositing/alpha-compositing-unstable-v1.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <protocol name="alpha_compositing_unstable_v1">
 
   <copyright>
     Copyright 2016 The Chromium Authors.
 
     Permission is hereby granted, free of charge, to any person obtaining a
     copy of this software and associated documentation files (the "Software"),
     to deal in the Software without restriction, including without limitation
     the rights to use, copy, modify, merge, publish, distribute, sublicense,
@@ skipping 107 matching lines @@
     <request name="set_alpha">
       <description summary="set the alpha value">
         Set the alpha value applied to the whole surface for compositing.
         See wp_alpha_compositing for the description.
 
         The alpha value state is double-buffered state,
         and will be applied on the next wl_surface.commit.
       </description>
       <arg name="value" type="fixed" summary="the new alpha value"/>
     </request>
-
   </interface>
 
-  <interface name="zwp_alpha_compositing_v1" version="1">
-    <description summary="DEPRECATED">
-      The global interface exposing compositing and blending capabilities is
-      used to instantiate an interface extension for a wl_surface object.
-      This extended interface will then allow the client to specify the
-      blending equation and alpha value used for compositing the wl_surface.
-    </description>
-
-    <request name="destroy" type="destructor">
-      <description summary="unbind from the blending interface">
-        Informs the server that the client will not be using this
-        protocol object anymore. This does not affect any other objects,
-        blending objects included.
-      </description>
-    </request>
-
-    <enum name="error">
-      <entry name="blending_exists" value="0"
-             summary="the surface already has a blending object associated"/>
-    </enum>
-
-    <request name="get_blending">
-      <description summary="extend surface interface for blending">
-        Instantiate an interface extension for the given wl_surface to
-        provide surface blending. If the given wl_surface already has
-        a blending object associated, the blending_exists protocol error
-        is raised.
-      </description>
-
-      <arg name="id" type="new_id" interface="zwp_blending_v1"
-           summary="the new blending interface id"/>
-      <arg name="surface" type="object" interface="wl_surface"
-           summary="the surface"/>
-    </request>
-  </interface>
-
-  <interface name="zwp_blending_v1" version="1">
-    <description summary="DEPRECATED">
-      An additional interface to a wl_surface object, which allows the
-      client to specify the blending equation used for compositing and
-      an alpha value applied to the whole surface.
-
-      If the wl_surface associated with the bledning object is destroyed,
-      the blending object becomes inert.
-
-      If the blending object is destroyed, the blending state is removed
-      from the wl_surface. The change will be applied on the next
-      wl_surface.commit.
-    </description>
-
-    <request name="destroy" type="destructor">
-      <description summary="remove blending from the surface">
-        The associated wl_surface's blending state is removed.
-        The change is applied on the next wl_surface.commit.
-      </description>
-    </request>
-
-    <enum name="blending_equation">
-      <description summary="different blending equations for compositing">
-        Blending equations that can be used when compositing a surface.
-      </description>
-      <entry name="none" value="0" summary="no blending"/>
-      <entry name="premult" value="1" summary="one / one_minus_src_alpha"/>
-      <entry name="coverage" value="2" summary="src_alpha / one_minus_src_alpha" />
-    </enum>
-
-    <request name="set_blending">
-      <description summary="set the blending equation">
-        Set the blending equation for compositing the wl_surface.
-        See wp_alpha_compositing for the description.
-
-        The blending equation state is double-buffered state,
-        and will be applied on the next wl_surface.commit.
-      </description>
-      <arg name="equation" type="uint" summary="the new blending equation"/>
-    </request>
-
-    <request name="set_alpha">
-      <description summary="set the alpha value">
-        Set the alpha value applied to the whole surface for compositing.
-        See wp_alpha_compositing for the description.
-
-        The alpha value state is double-buffered state,
-        and will be applied on the next wl_surface.commit.
-      </description>
-      <arg name="value" type="fixed" summary="the new alpha value"/>
-    </request>
-
-  </interface>
 </protocol>