Update styling for pages with add `x` button
Revert "Added in bulk operations to VMs from the VM List page."

This reverts commit f0533e0a99940aeba0e9ca20a3f7fc9451001b5b.

Conflicts:

	ganeti_web/templates/ganeti/virtual_machine/inner_table.html
	ganeti_web/templates/ganeti/virtual_machine/list.html
	ganeti_web/views/virtual_machine.py

refs #2757
Merge branch 'remove_bulk_opts' into develop