Deprecate TransformTestSelectorParamsToHashPairs transform

[marcoow]

As discussed in #149 doesn't work reliably in all supported version of Ember, if it breaks results in very cryptic error messages and is really a small convenience feature anyway as you can always do

{{foo-component data-test-foo=true}}

instead of

{{foo-component data-test-foo}}

anyway.

[Turbo87]

@marcoow as discovered in #150 it does actually work all the way down to Ember 1.11, but the other arguments RE usability still stand.

[marcoow]

I think this is similar to the testSelector helper that we had - it adds complexity for very little value.

[Turbo87]

as mentioned in ember-codemods/ember-no-implicit-this-codemod#51 (comment), we should write a small codemod, deprecate the pattern and then throw it away.

with angle bracket syntax there is no need for this hack anymore 🎉

[Turbo87]

https://github.com/simplabs/ember-test-selectors-params-codemod ✨

[runspired]

hit this because of the no-implicit-this codemod, +1 for deprecating and was happy it was an easy fix.