river: drop support for wl_drm

wl_drm is a legacy interface superseded by the linux-dmabuf
protocol. All clients should migrate.

This commit drops support for the protocol which should help find
whatever problematic clients are left in the wild.

If it turns out that this is too soon we can easily keep supporting
wl_drm for a little while longer as wlroots has not yet dropped support
for it.

1 files changed, 0 insertions, 0 deletions

diff --git a/deps/zig-wlroots b/deps/zig-wlroots
-Subproject 13fdf6c0677d50db501fcb8bacfc6ae0a27ee9e
+Subproject 0644a408625e6d1f7d0631f43b95c6f38a595c7