Fold private setGroupTree function back into caller

[eileenmcnaughton]

Overview

Fold private setGroupTree function back into caller

Before

Previously shared setGroupTree only called from one place & that place

After

function folded into the called

Technical Details

The caller passed values as properties, unnecessarily - this addresses

Comments

[civibot]

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[demeritcowboy]

This broke some things. There's no longer a parameter named $form so when it gets accessed it's always null.

Easy to see if you just go to New Case. Or New Contribution.

I'm a little bit tired - I'll look tomorrow if nobody else fixes it by then.

[eileenmcnaughton]

opps - #26851