Remove unused import of oslo_log
Remove unused import of oslo_log

oslo_log was being imported but not used.

Change-Id: Iae166b02ec79694ca745eb605e63bad501f7ca9d

dims/ironic,devananda/ironic,openstack/ironic,NaohiroTamura/ironic,ionutbalutoiu/ironic,SauloAislan/ironic,SauloAislan/ironic,dims/ironic,ionutbalutoiu/ironic,bacaldwell/ironic,NaohiroTamura/ironic,pshchelo/ironic,bacaldwell/ironic,pshchelo/ironic,hpproliant/ironic,openstack/ironic