Fix for `require-await-function` overly aggressive

[Benjamin Feng]

There are a few cases where I ran --fix on the codebase:

// before
const promise = render();

// after
const promise = await render();

Assignment to a "require await" function probably should not be auto fixed. It's preferable here to manually disable the rule since it is actually testing the result of the promise.

I think the correct solution is only applying the fix on top level function calls.

[Bryan Mishkin]

So you think we should still flag a violation on assignment but don't autofix it?