modem, process: Remove unneeded test import

Change-Id: Icd8cbb753aafdef49bde56bc5b0294f82133887c
diff --git a/src/osmo_gsm_tester/modem.py b/src/osmo_gsm_tester/modem.py
index cb4a8de..ca8387b 100644
--- a/src/osmo_gsm_tester/modem.py
+++ b/src/osmo_gsm_tester/modem.py
@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from . import log, test, util, event_loop, sms
+from . import log, util, event_loop, sms
 
 from pydbus import SystemBus, Variant
 import time