Do not add "https://" and "/api" to oVirt URI
It is deprecated since govirt 0.3.1 (and virt-viewer already depends on
govirt 0.3.2).
Silences:
(remote-viewer:19420): libgovirt-WARNING **: Passing a full http:// or https:// URI to ovirt_proxy_new() is deprecated
(remote-viewer:19420): libgovirt-WARNING **: Passing an URI ending in /api to ovirt_proxy_new() is deprecated