OMERO.editor deprecation: remove from the build system
Fix build target
Delete editor code.
Remove ref to "editor"
Remove ref to editor ns.
Remove smart folder for protocol.
Remove ref to editor from browser.
Remove ref to editor icon.
Remove ref to editor icon.
Remove remaining ref to ns.
Remove ref to protocol/experiment in right-hand panel.
Remove ns variable since it is always null.
no longer check if the server is available.
Merge pull request #3113 from jburel/editor_deprecation

Editor deprecation