When user try to remove central policy Installation URL from Proxy Management console at Configuration > Policy > Policy Files > Beside 'Install Central file from' select Remote URL and remove Installation URL gets the error %Invalid URL : pattern-empty: ""
Below are the CLI commands to remove central-policy Installation URL:
ProxySG>enable
Enable Password:
ProxySG#
ProxySG#conf t
Enter configuration commands, one per line. End with CTRL-Z.
ProxySG#(config)policy no central-path
ok
ProxySG#(config)exit