Revert: Don't create socket during repo key import
Revert: Don't create socket during repo key import

The original commit 26bd16255dde5ba78c87e9868dd35d106ff50d47
configures the gpg agent to run in server mode (without sockets).
But importing of repo keys is very slow with gpg-agent in server mode
for unit tests.

Tojaj/librepo,rpm-software-management/librepo,Tojaj/librepo,rpm-software-management/librepo,rpm-software-management/librepo,Tojaj/librepo