Remove cockpit releated packages

Since now there is no podman bundle creation so this is unused function.

Author: praveenkumar

createdisk-library.sh

@@ -200,12 +200,6 @@ function install_additional_packages() {
     fi
 }
 
-function prepare_cockpit() {
-    local vm_ip=$1
-
-    install_additional_packages ${vm_ip} cockpit-bridge cockpit-ws cockpit-podman
-}
-
 function prepare_hyperV() {
     local vm_ip=$1