Removing ESXi shell / SSH for the host has been enabled warning in VMware ESXi 5

Since vSphere 5, you can remove the annoying warning that appears on ESXi hosts when you turn ESXi Shell or SSH on. This warning can be seen when selecting host's Summary tab and therefore can't be removed by simply going to the Alarms tab and acknowledging / clearing it.

Both of these warnings can now be removed by going to host's advanced parameters (Configuration tab -> Advanced Settings), selecting UserVars on the left side and setting parameter UserVars.SupressShellWarning to 1.