Merge pull request MicrosoftDocs#3547 from rroddy24/patch-1

Update Clear-MobileDevice.md

Author: chrisda

exchange/exchange-ps/exchange/devices/Clear-MobileDevice.md

@@ -156,6 +156,8 @@ Accept wildcard characters: False
 ### -AccountOnly
 The AccountOnly switch specifies whether to perform an account-only remote device wipe where only Exchange mailbox data is removed from the device. You don't need to specify a value with this switch.
 
+You don't need to use this switch for the DeviceType value Outlook, because an account-only remote devices wipe is the only type of wipe that's used on Outlook devices.
+
 ```yaml
 Type: SwitchParameter
 Parameter Sets: (All)