Stop installing static files for websupport.

These files are already shipped by python[3]-sphinxcontrib.websupport,
and there is no need to have them in all -doc packages that do not use
websupport.
5 jobs for debian/sid in 21 minutes and 43 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Build
passed #306358
build

00:10:03

 
  Test
passed #306361
autopkgtest

00:11:38

passed #306360
lintian

00:01:45

passed #306362
piuparts

00:06:50

failed #306359
reprotest

00:06:16

 
Name Stage Failure
failed
reprotest Test
        if ( cleanup ); then :; else echo >&2 "cleanup failed with exit code $?"; fi;
fi
exit $__x
fi" failed with status 2
Uploading artifacts...
/builds/python-team/modules/sphinx/debian/output/reprotest: found 1 matching files
/builds/python-team/modules/sphinx/debian/output/reprotest.log: found 1 matching files

Uploading artifacts to coordinator... ok
id=306359 responseStatus=201 Created token=B-FkReFD
ERROR: Job failed: exit code 1