perf: path()

[romgrk]

If I'm not mistaken, this check is redundant with the one above.

[selfrefactor]

I will check if that is the case

[selfrefactor]

I am closing this MR as it is needed for

test.only('null is not a valid path', () => {
  expect(path('audio_tracks', {
    a            : 1,
    audio_tracks : null,
  })).toBeUndefined()
})

Ramda passes this test, so Rambda must also.

[romgrk]

That's an annoying behavior from ramda :|