Bug 25672: (QA follow-up) Hide install after search button

Bug 25672: (QA follow-up) Hide install after search button

If plugin upload is disabled, but there are git repositories listed in
the config for plugin searching, then you can search for a plugin and
attempt to install it. The install leads to an error page.

This patch removes the actions column and install button should the
enable_browser_upload option be disabled

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: David Cook <dcook@prosentient.com.au>
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>