IMGAPI-265: drop usage of img_mgmt trait from IMGAPI-262 for image creation packages/servers
IMGAPI-265: drop usage of img_mgmt trait from IMGAPI-262 for image creation packages/servers

numericillustration/sdc-imgapi,joyent/sdc-imgapi,numericillustration/sdc-imgapi,joyent/sdc-imgapi,numericillustration/sdc-imgapi,joyent/sdc-imgapi