Travis-S-IBM

@coruscating One question: what is the impetus for getting rid of the scikit-learn dependency? It's a dependency in Terra and the Qiskit Finance module anyway. (Not here to argue; looking...

Note: I'd also be open to do a replication of [this paper](https://arxiv.org/abs/2003.09887), which isn't in the database. But the authors note that they originally used Qiskit, then abandoned it.

Noting here @bagmk and I are working on replicating this paper: [_Evaluation of Parameterized Quantum Circuits: on the relation between classification accuracy, expressibility and entangling capability_](https://arxiv.org/abs/2003.09887).