egl: remove explicit config_id management from dri2_add_config()

Currently we only saved the id to memcpy the whole _EGLConfig to write
back the exact same id value.

Remove the unneeded and confusing/misleading code.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
1 file changed