Removed edit icon hover effect

Also did some JS clean up.

Change-Id: I5b282fbee72413ad863562591c4e1e76b2579918
Closes-Bug: #1357589
Stop preloading Admin Volumes tabs

API calls can take a long time, no need to preload all the tabs before
they are needed.

Change-Id: I51eb0ca2cf288a75a7c43d7c010affebf33b8912
Closes-Bug: 1357186
Merge "Stop preloading Admin Volumes tabs"
Merge "Removed edit icon hover effect"