Remove MoveFDBBinaries function in the operator

[brownleej]

Once #726 is completed, we will need new versions of FDB that support it. Once we drop support for all versions of FDB without this binary copying behavior, we can drop the MoveFDBBinaries function from the operator.

[brownleej]

We may want to rethink this in the context of the new monitor design.

[johscheuer]

We can remove this function once we dropped support for the "old" sidecar approach with the dedicated sidecar image.