Revert "fix get device script"

This reverts commit d808794beb2ed0988b0ecfaeb9a13247a99ecd17.
Revert "allow missing kernel modules in squisher"

This reverts commit 8a51477ff5ff15272d553bb83641f111d1723410.
Revert "update bash_completion"

This reverts commit 27c6984499b41025d4f4970f4e8f23986e5c3b53.