Restore Delete and Edit options to Cloud Networks toolbar

[mansam]

Now that ManageIQ/manageiq#12551 is merged as mentioned in the section that was commented out, it should be possible to restore this functionality. It appears to work correctly for me.

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1490393

[miq-bot]

Checked commit mansam@c37830c with ruby 2.3.3, rubocop 0.47.1, and haml-lint 0.20.0
1 file checked, 2 offenses detected

app/helpers/application_helper/toolbar/cloud_networks_center.rb

• ❗ - Line 26, Col 30 - Style/MultilineMethodCallBraceLayout - Closing method call brace must be on the line after the last argument when opening brace is on a separate line from the first argument.
• ❗ - Line 35, Col 31 - Style/MultilineMethodCallBraceLayout - Closing method call brace must be on the line after the last argument when opening brace is on a separate line from the first argument.

[simaishi]

Fine backport details:

$ git log -1
commit 4730da3620a7f6b9585998939b643cc4fadaa3bd
Author: Milan Zázrivec <mzazrivec@redhat.com>
Date:   Tue Oct 17 12:50:21 2017 +0200

    Merge pull request #2417 from mansam/restore-cloud-networks-delete-and-edit
    
    Restore Delete and Edit options to Cloud Networks toolbar
    (cherry picked from commit 87c83da7be7b9e44462ee70a0a0c13b9cf80a79c)
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1511125