Revert "Add Functor.Implicit"

This reverts commit 1f6a9b3bd1c4e4e2d620b5a64e9f8e2515120df9.

Conflicts:
	extended-categories.cabal
Add dual categories
Rename CanonicalF to Ftag
Add type synonyms for the identity functor and functor composition in Hask
NaturalTransformation: Use the FunctorOf synonym
NaturalTransformation: Add products and coproducts
NaturalTransformation: Add the application functor
Add monads
Add Free monads