build_packages: remove unused --accept_licenses
build_packages: remove unused --accept_licenses

This flag was dropped from setup_board way back in commit 7d6619df8.

glevand/coreos--scripts,smilart/scripts,marineam/coreos-scripts,smilart/scripts,smilart/scripts,marineam/coreos-scripts,mjg59/scripts,mjg59/scripts,mjg59/scripts,marineam/coreos-scripts,glevand/coreos--scripts,coreos/scripts,coreos/scripts