build: remove sudo from travis build
build: remove sudo from travis build

AlexNPavel/ignition,higebu/ignition,trnubo/ignition,jonboulle/ignition,higebu/ignition,mischief/ignition,ajeddeloh/ignition,trnubo/ignition,ajeddeloh/ignition,dgonyeo/ignition,ajeddeloh/ignition,mischief/ignition,mischief/ignition,higebu/ignition,coreos/ignition,marineam/ignition,dgonyeo/ignition,coreos/ignition,jonboulle/ignition,jonboulle/ignition,coreos/ignition,marineam/ignition,AlexNPavel/ignition,marineam/ignition,dgonyeo/ignition,AlexNPavel/ignition,trnubo/ignition