This partially reverts 
20543be93ca45968f344261c1a997177e51bd7e1.
Calling drm_connector_update_edid_property() in
amdgpu_connector_free_edid() causes a noticeable pause in
the system every 10 seconds on polled outputs so revert this
part of the change.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2257
Cc: Claudio Suarez <cssk@net-c.es>
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
 
        kfree(amdgpu_connector->edid);
        amdgpu_connector->edid = NULL;
-       drm_connector_update_edid_property(connector, NULL);
 }
 
 static int amdgpu_connector_ddc_get_modes(struct drm_connector *connector)