third_party: Remove deprecated zwp wayland interfaces.

third_party/wayland-protocols/unstable/vsync-feedback/vsync-feedback-unstable-v1.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <protocol name="vsync_feedback_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 78 matching lines @@
         most significant and least significant part, suffixed by "_h" and "_l"
         respectively.
       </description>
       <arg name="timebase_l" type="uint" summary="new vsync timebase (lower 32 bits)"/>
       <arg name="timebase_h" type="uint" summary="new vsync timebase (upper 32 bits)"/>
       <arg name="interval_l" type="uint" summary="new vsync interval (lower 32 bits)"/>
       <arg name="interval_h" type="uint" summary="new vsync interval (upper 32 bits)"/>
     </event>
   </interface>
 
-  <interface name="zwp_vsync_feedback_v1" version="1">
-    <description summary="DEPRECATED">
-      The global interface that allows clients to subscribe for vertical
-      synchronization timing data for given wl_output.
-    </description>
-
-    <request name="destroy" type="destructor">
-      <description summary="destroy vsync feedback object">
-        Destroy this vsync feedback object. Existing vsync timing objects shall
-        not be affected by this request.
-      </description>
-    </request>
-
-    <request name="get_vsync_timing">
-      <description summary="get vsync timing object for given wl_output">
-        Create a new vsync timing object that represents a subscription to
-        vertical synchronization timing updates of given wl_output object.
-
-        The newly created object will immediately signal an update to notify
-        the subscriber of initial timing parameters.
-      </description>
-      <arg name="id" type="new_id" interface="zwp_vsync_timing_v1" summary="the new vsync timing interface id"/>
-      <arg name="output" type="object" interface="wl_output" summary="the wl_output object to subscribe for timings of" allow-null="true"/>
-    </request>
-  </interface>
-
-  <interface name="zwp_vsync_timing_v1" version="1">
-    <request name="destroy" type="destructor">
-      <description summary="destroy vsync timing object">
-        Destroy this vsync timing object.
-      </description>
-    </request>
-
-    <event name="update">
-      <description summary="vsync timing updated">
-        Notifies client that vertical synchronization timing of given wl_output
-        has changed.
-
-        Timing information consists of two data, timebase and interval. Timebase
-        is an absolute timestamp of the vsync event that caused the timing to
-        change. Interval is a period of time between subsequent vsync events.
-
-        The unit of all above mentioned time values shall be microseconds and
-        absolute timestamps should match the realm of the primary system
-        monotonic counter, i.e. the POSIX clock_gettime(CLOCK_MONOTONIC). Data
-        type of both values is defined to be a 64-bit unsigned integer, but
-        since the biggest unsigned integer datatype defined by the Wayland
-        protocol is the 32-bit uint, both timebase and interval are split into
-        most significant and least significant part, suffixed by "_h" and "_l"
-        respectively.
-      </description>
-      <arg name="timebase_l" type="uint" summary="new vsync timebase (lower 32 bits)"/>
-      <arg name="timebase_h" type="uint" summary="new vsync timebase (upper 32 bits)"/>
-      <arg name="interval_l" type="uint" summary="new vsync interval (lower 32 bits)"/>
-      <arg name="interval_h" type="uint" summary="new vsync interval (upper 32 bits)"/>
-    </event>
-  </interface>
 </protocol>