media-libs/mesa: drop vulkan-overlay, zink USE flags

Signed-off-by: James Calligeros <[email protected]>

media-libs/mesa/metadata.xml

@@ -17,10 +17,8 @@
     <flag name="osmesa">Build the Mesa library for off-screen rendering.</flag>
     <flag name="proprietary-codecs">Enable codecs for patent-encumbered audio and video formats.</flag>
     <flag name="vdpau">Enable the VDPAU acceleration interface for the Gallium3D Video Layer.</flag>
-    <flag name="vulkan-overlay">Build vulkan-overlay-layer which displays Frames Per Second and other statistics</flag>
     <flag name="wayland">Enable support for <pkg>dev-libs/wayland</pkg></flag>
     <flag name="xa">Enable the XA (X Acceleration) API for Gallium3D.</flag>
-    <flag name="zink">Enable the Zink OpenGL-over-Vulkan Gallium driver</flag>
   </use>
   <upstream>
     <remote-id type="freedesktop-gitlab">asahi/mesa</remote-id>