Remove unused routes from the miq_policy_controller

[skateman]

The _get_all routes are no longer used as the action_url local variable is not being used in the layouts/gtl anymore. There's a callsite to each method though, from tree_select methods, so I kept the method definitions. The action_tag_pressed method has been probably deleted when we started using the new tagging screen.

[miq-bot]

Checked commit skateman@fb02291 with ruby 2.5.7, rubocop 0.69.0, haml-lint 0.28.0, and yamllint
5 files checked, 4 offenses detected

app/views/miq_policy/_action_list.html.haml

• ⚠️ - Line 2 - Layout/ExtraSpacing: Unnecessary spacing detected.
• ⚠️ - Line 2 - Layout/SpaceAroundOperators: Operator => should be surrounded by a single space.

app/views/miq_policy/_alert_list.html.haml

• ⚠️ - Line 2 - Layout/ExtraSpacing: Unnecessary spacing detected.
• ⚠️ - Line 2 - Layout/SpaceAroundOperators: Operator => should be surrounded by a single space.

[simaishi]

Jansa backport details:

$ git log -1
commit 74ed7e5790830a8954e4e3537537aac6e2320f62
Author: Milan Zázrivec <mzazrivec@redhat.com>
Date:   Fri May 29 13:00:57 2020 +0200

    Merge pull request #7087 from skateman/policy-unused-routes

    Remove unused routes from the miq_policy_controller

    (cherry picked from commit 590486b43cdc573f32b343124ea378f23635ec71)