Cleanup config files

[abmusse]

Config files have unused actions and comments. We should remove these as they add unnecessary parsing during chroot_setup.

The following actions are unused in our config files

• :ln_rel
• :ln_fix_rel
• :chmod
• :chown_dir
• :chown
• :system
• :sh

grep -r ':ln_rel'
config/chroot_minimal.lst:409::ln_rel     #  unused in file commented out
config/chroot_template.lst:76::ln_rel     # unused in file commented out
chroot_setup.sh:169:          ":ln_rel")

grep -r ':ln_fix_rel'
chroot_setup.sh:166:          ":ln_fix_rel")

grep -r ':chmod'
config/chroot_minimal.lst:550::chmod     # unused in file commented out
config/chroot_template.lst:96::chmod     # unused in file commented out
chroot_setup.sh:187:          ":chmod")

grep -r ':chown_dir'
config/chroot_minimal.lst:556::chown_dir     # unused in file commented out
config/chroot_template.lst:102::chown_dir    # unused in file commented out
chroot_setup.sh:190:          ":chown_dir")

grep -r ':chown'
config/chroot_minimal.lst:563::chown     # unused in file commented out
config/chroot_template.lst:109::chown     # unused in file commented out
chroot_setup.sh:190:          ":chown_dir")
chroot_setup.sh:193:          ":chown")

grep -r ':system'
config/chroot_system.lst:10::system     # unused in file commented out
config/chroot_minimal.lst:571::system    # unused in file commented out
config/chroot_template.lst:117::system     # unused in file commented out
chroot_setup.sh:196:          ":system")
README.md:145::system

 grep -r ':sh'
config/chroot_minimal.lst:532::sh     # unused in file commented out
chroot_setup.sh:199:          ":sh")