drm: Drop drm_get_link_status_name()

drm: Drop drm_get_link_status_name()

drm_get_link_status_name() isn't used so kill it.

Fixes the following sparse warning:
drm_connector.c:618:1: warning: symbol 'drm_get_link_status_name' was not declared. Should it be static?

Cc: Manasi Navare <[email protected]>
Fixes: 40ee6fbef75f ("drm: Add a new connector atomic property for link status")
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Thierry Reding <[email protected]>