elpy is marked for autoremoval from testing

[Debian testing autoremoval watch]

elpy 1.23.0-1 is marked for autoremoval from testing on 2018-09-03

It (build-)depends on packages with these RC bugs:
903533: yapf: yapf FTBFS with Python 3.7 as supported version
904755: yapf: missing dependency on python-pkg-resources