Remove some of the usage of @property as none of
these objects are publicly exposed (or have docstrings
on them) to save some space/lines of code that aren't
really adding any benefit.
Use less **kwargs when we know exactly what the keyword
arguments will or will not be. Being explicit makes it
easier to understand these functions (vs not knowing what
the arguments can or can't be).
Removes base worker finder because right now we only
have one implementation (at some point we will have
two) but we can just wait to add a base class until
then.
Change-Id: I7107ff6b77a355b4c5d301948355fb6386605388