Remove imports now that we have package-level aliases

[travisbrown]

These are causing the build to fail both locally for me and on Travis.

[travisbrown]

Oh, new commits just showed up—rebasing this now.

[travisbrown]

We can't import algebra.Monoid in Foldable because of the type alias hiding, but we need the Monoid companion object there, not just the type. I've just used the fully-qualified name for the companion object, but that's probably not the best long-term solution (maybe a val Monoid in the package object?). My vote is that we can decide on that later and just fix the build for now.

[non]

Yes, in another PR I added aliases for the companions.

So once that lands we can change this (or vice versa). Sorry for the incomplete strategy.

[non]

I agree, 👍 on this for now.

[stew]

yeah, this works for me now 👍