Removes timers which call the specified "function" with the specified "parameter".
If "parameter" is not set (or ""), all timers with the matching "function" will be removed.
If neither "function" nor "parameter" is set (or if both are ""), this will remove ALL existing timers.
Once a timer has been removed it won't be executed anymore.
Of course you can create the same time again if you want to.
Note: You do not have to remove timers with a limited call count manually. They will remove themselves when they expire.
Attention: Be very careful with the parameters. If both are empty / empty strings (""), you will remove ALL timers!