Don't make the test database in memory for beat.cmdline tests

For testing purpose the database has been moved to /dev/shm and the sqlite3 file is used to optimize the testing speed of beat/beat.cmdline.

beat/web/settings/test.py

@@ -28,7 +28,6 @@
 # Django settings for tests
 import os
 import platform
-import sys
 
 from .settings import *  # noqa
 
@@ -58,10 +57,6 @@ DATABASES["default"]["ATOMIC_REQUESTS"] = True  # noqa
 # Timeout used in test when waiting for an update
 DB_REFRESH_TIMEOUT = int(os.environ.get("DB_REFRESH_TIMEOUT", 10))
 
-if "beat.cmdline" in sys.argv:
-    # make it in-memory for cmdline app tests
-    DATABASES["default"]["NAME"] = ":memory:"  # noqa
-
 LOGGING["handlers"]["console"]["level"] = "DEBUG"  # noqa
 LOGGING["loggers"]["beat.core"]["handlers"] = ["discard"]  # noqa
 LOGGING["loggers"]["beat.web"]["handlers"] = ["discard"]  # noqa