Remove PlayerZone_ComesIntoPlay static fields?

[Braids]

a project wide case insensitive string search in eclipse tells me that PlayerZone_ComesIntoPlay.SimultaneousEntry and PlayerZone_ComesIntoPlay.SimultaneousEntryCounter are written to, but never read from, and isSimultaneousEntry() is never called. should these be removed? these are supposedly needed by Ally subtyped cards, but nothing is using these values at present.

[Hellfish]

Well, Ally cards don't use it, I know that much.Those were converted to plain triggers a while ago.

[friarsol]

I think Allies and Valakut were the main two cards that used it. But since they were both converted to script I don't think it's used anymore.