Revert "G2 Panels: Automatically detect panel command line (AOSP)"

This has been replace by https://github.com/dr87/4.4_g2-common/commit/1c30e3070587489250d84ea41f027dc03f701812 and is not longer needed

This reverts commit 09342ba73d5875261857b66bf259feca1a75edef.