The library is end of life and out of date for recent python.
This change completes the removal from Adjutant, as was
started in I102e94c8172f6ea660814dd8fcd44ed8239b2e67
A viable replacement library may be drf-yasg, and may be
implemented in the future.
Co-Authored-By: matthewnorthcott@catalystcloud.nz
Change-Id: Ifd43db86f801bd16aea358245c0e8a5392e66d55
b368c65bb9