Drop unused comps

[asirvadAbrahamVarghese]

PR to remove below unused components as mentioned here

• tree-view
• generic_table_row.jsx
• multiselect-with-selectall

@miq-bot add-label cleanup

[miq-bot]

Checked commits asirvadAbrahamVarghese/manageiq-ui-classic@edba1ef~...c36149f with ruby 3.3.10, rubocop 1.56.3, haml-lint 0.69.0, and yamllint
0 files checked, 0 offenses detected
Everything looks fine. 🍪

[asirvadAbrahamVarghese]

To confirm these are not being used anywhere:

• If these components were directly imported, Webpack would’ve thrown a “can’t resolve” error.
• The other way they could be used is via schemas through the component mapper, which should show up in a search across the app.
• Another possibility is usage inside plugins, I checked under .gem/ruby/3.3.0/bundler/gems/, but couldn’t find anything there either. So I’m assuming they’re not used anywhere. Any thoughts?