Duplicate navbar Tab

I have added a new tab using the new system in 4.2 but I cannot seem to find which template I need to look in to remove the old one as it was originally added in the navbar template in version 3.5 but this code no longer seems to be there so I am pretty lost.

[Hippy]

admincp
styles and templates
style manager
you need to look in your navbar template
under your navigation template group compare it to find the old code