See reference below - in short, if you are not using NameMapping then deleting it won't cause any effect [Community solution]
"The TypeInfo file contains info on properties and methods of objects added to NameMapping. What is stored there in determined by the following setting - Name Mapping > Options > Stop object data
This is needed so that when you are writing a script and the mapped object you are working with is missing from the system, Code Completion will still show available methods and properties for this object."
[[ kITt: keep IT testing ]]
