[CLEANUP beta] Remove deprecated {{each foo as bar}} AST transform

[ghost]

Resolves #11772

The following test fails:
https://github.com/emberjs/ember.js/blob/master/packages/ember-htmlbars/tests/helpers/each_test.js#L451

I tried changing the each in to each as but no luck.
I'll probably keep on removing deprecated stuff until this test goes away

[rwjblue]

Yeah, you can't use block params without a block. You can remove this and change this to {{#each view.people itemViewClass="foo-view" as |person|}}{{person.name}}{{/each}}.

If that doesn't work, delete the test (it is using deprecated itemViewClass anyways).

[ghost]

I removed the test as the suggested change triggered that it couldn't find itemViewClass foo-view.

[rwjblue]

👍

[stefanpenner]

kicking the 1 failed test scenario

[ghost]

Fix'd