ngSwitch has an undocument change attribute

[rodyhaddad]

There seems to be a change attribute that ngSwitch evaluates that isn't documented.
See in current code.

Looking at the history, this got introduced in 0df93fd back in 2010, here.

I believe we should remove it, as it seems it was never documented.

Thoughts?

[lgalfaso]

+1 to remove it

[IgorMinar]

remove

[thebigredgeek]

Hey @rodyhaddad! Let me take a swing at this. Are you still in SF/MV btw? Just finished my move to PA ;)

[thebigredgeek]

#8858