Deprecation: #80513 - DataHandler: Various methods and method arguments
See forge#80513
Description
The method 
        Data has been marked as deprecated.
The fourth parameter 
        $func of the method 
        Data has been deprecated.
Impact
Calling the method 
        Data will trigger a deprecation log entry.
Calling the method 
        Data with the fourth parameter (usually set to
'deleteAll') will trigger a deprecation log entry.
Affected Installations
Any installation with custom extension logic using the DataHandler and specifically these methods.
Migration
Replace the function call 
        Data by prepend the
constant 
        PATH_ before the string to be handed over to the deprecated method.
Remove the fourth parameter of the callee of 
        Data.