That will completely remove the muted (grey color) version dates, etc. from displaying when viewing the Resource Manager pages.
Note: The lines must also be in that order, mainly the 2nd and 3rd lines. The reason is the second line will also stop the tag line from appearing and the 3rd line will bring it back so it must happen after stopping both of them first.
There is no other way to do it without modifying code in the other templates. .