Epic start & due date help tooltip is appearing in unexpected locations

Summary

The Due dated tooltip that is intended to display within Epics is displaying within issues. It also displays unexpectedly when the sidebar is minimized.

Sidebar expanded	Sidebar collapsed

Steps to reproduce

Navigate to an issue
View Due date in the sidebar
Click on the icon to view the popover referencing epics and roadmaps incorrectly
Collapse the sidebar to view the icon appearing unexpectedly

Example Project

#299989

What is the current bug behavior?

When sidebar is expanded: There is an icon next to the Due date field with a popover
When sidebar is collapsed: There is an icon appearing over the `Due date1 label

What is the expected correct behavior?

The Due date tooltip should not appear in Issues, only in Epics

Output of checks

Results of GitLab environment info

Expand for output related to GitLab environment info


(For installations with omnibus-gitlab package run and paste the output of:
`sudo gitlab-rake gitlab:env:info`)

(For installations from source run and paste the output of:
`sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production`)

Results of GitLab application Check

Expand for output related to the GitLab application check

(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:check SANITIZE=true)
(For installations from source run and paste the output of:
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)
(we will only investigate if the tests are passing)