web: structure: remove a few hover state filters
web: structure: remove a few hover state filters

these don't seem to actually have any impact; the behavior works fine.
maybe these were copypasta? i almost copypasta'd my own.

or these may just be outdated - I noticed the duration tooltip filters
are necessary, but not the others. the duration tooltip seems to work
differently from the rest of them, so maybe that's why - it would also
explain why it's the only one with z-index issues.

Signed-off-by: Alex Suraci <925ba519bbf1a06224928b692ef88b93aee946af@gmail.com>

concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse