remove tracks not in PV for hadron cands

[jshlee]

@watson-ij - should we remove tracks not from PV?
https://github.com/mbluj/usercode-WawTools/blob/master/HTT/plugins/MiniAODVertexAnalyzer.cc#L214

this could speed up our production a bit more

[jshlee]

and remove a bit more fakes

[watson-ij]

It would be probably useful to get rid of tracks from other pp interactions, but how do the sorts of secondary displaced tracks we're interested in work? Are they still somehow able to be associated to the PV?

[jshlee]

no sure, but it would be worth testing.

[jshlee]

woojin - can u test this