rm tests of deprecated logging functions

[stevengj]

As @StefanKarpinski suggested (#25067 (comment)), this PR deletes the tests of the logging functions that were deprecated in #24490.

In fact, these tests had apparently already bitrotted because they aren't exercised by CI (which runs with --depwarn=error, I guess), making make -C tests misc break if you run it locally.

[stevengj]

MacOS Travis failure No output has been received in the last 10m0s, this potentially indicates a stalled build or something wrong with the build itself. seems unrelated.

[c42f]

This looks fine to me.

I had an alternative for this which I thought addressed your concerns at 5d77d1b#r26334167 a little more thoroughly.

It was coming as part of a larger cleanup of small odds and ends, but here it is #25239

Either way seems reasonable to me, though I think testing deprecations as a matter of course would be good practice. It should be as simple as moving them to a section in deprecation_exec.jl just like we do for base/deprecated.jl

[c42f]

Hopefully I manage to remove the need for --depwarn=error soon so we won't need to run deprecation_exec.jl with special flags.

[c42f]

Superseded by #25239