Remove noninteractive args

Instead of introducing a noninteractive arg, we decided to pull out any
host specific setting from modules into their own proper modules

install.sh

@@ -114,8 +114,6 @@ function main() {
 	  -l, --list               List modules that are going to be installed and
 	                           exit without installation. Modules are printed in
 	                           minimal but still distinct paths.
-	  --noninteractive         Run the installation noninteractively. In this case
-	                           a config file must be provided.
 	  -d FILE, --logfile FILE  Print log message to logfile instead of stdout.
 	  -v, --verbose            Be more verbose.
 	  --config-only PATH       Ask module questions, generate config at PATH and

modules/01-set-hostname.sh

@@ -70,7 +70,6 @@ function getUsage() {
 	Options:
 	  --hostname NAME          Set NAME as current host's host name.
 		--timezone ZONE          Set ZONE as current host's timezone [default: Europe/Berlin].
-	  --noninteractive         Run module noninteractively.
 	  -d FILE, --logfile FILE  Print log message to logfile instead of stdout.
 	  -v, --verbose            Be more verbose.
 	----