Remove pointless Walk through the $nextTick

[ahmedkandel]

Closes #287

[calebporzio]

Please provide a more thorough explanation. (I know you referenced a GH issue, but I'd still like more clarity on this contribution. Also, tests would be a great way to demonstrate its use, thanks!)

[ahmedkandel]

Sure, in component.js we "walk through the $nextTick stack and clear it as we go" in three different places. Under initializeElements() and updateElements() which is expected, But also under valueMutated() > debounce() which i think it is useless and make some confusion.

The point is inside debounce() we call updateElements() which clears out the nextTickStack so after updateElements() finishes there will not be any remaining expressions in nextTickStack.

The current $nextTick test already passes after removing this part which means it still working as expected.

[calebporzio]

Thanks! Good catch!