install_kernel: remove grub-legacy-ec2 on Debian
install_kernel: remove grub-legacy-ec2 on Debian

HuijingHei/lis-test,LIS/lis-test,LIS/lis-test,HuijingHei/lis-test,lixuemin2016/lis-test,adriansuhov/lis-test,LIS/lis-test,adriansuhov/lis-test,LIS/lis-test,HuijingHei/lis-test,lixuemin2016/lis-test,adriansuhov/lis-test,adriansuhov/lis-test,HuijingHei/lis-test,lixuemin2016/lis-test,lixuemin2016/lis-test