Run the following commands separately in order to uninstall RVglobalsoft Manager.

/usr/local/cpanel/bin/unregister_appconfig /usr/local/rvglobalsoft/rvglobalsoftmanager/auto/appconfig/rvglobalsoftmanager.conf

rm -rf /usr/local/rvglobalsoft/rvglobalsoftmanager/

rm -f /usr/local/cpanel/whostmgr/docroot/cgi/addon_rvglobalsoftmanager.cgi

After uninstalled "RVglobalsoft Manager", you can remove "RVglobalsoft Manager" icon by deleting this file:

/usr/local/cpanel/whostmgr/cgi/addon_rvglobalsoftmanager.cgi