egl/dri2: don't require libudev to build drm/wayland platforms

After the loader changes libudev is no longer required to
build gbm or the egl drm/wayland platforms.

Remove a libudev ifdef which allows the the drm egl driver
to be loaded on OpenBSD.

Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Cc: "10.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
1 file changed