Removed const ParserCache::try116cache

Version 1.16 is long ago and there seems no need to keep the const
ParserCache::try116cache in core.
Removed the if(self:: try116cache) block

Bug: 59127
Change-Id: I705a056665441f81516a4dbb6fe317a44da91d43
Merge "Removed const ParserCache::try116cache"