Cleanup names, this is now a channel, not an sreq
Convert saltutil to use channel instead of sreq
Convert wheel to channel interface as well
Convert auth to use channels instead of sreq directly
Convert crypt to use channels instead of sreq
Remove unused interface, since this isn't really public this should be fine
remove unnecessary kwarg
Pylint fix
Remove tests for old interface
Misc cleanup-- this is cleaner logic IMO
Merge pull request #18643 from jacksontj/develop

Channel/Sreq cleanup