Remove unnecessary justbytes import

Signed-off-by: mulhern <amulhern@redhat.com>

Author: mulkieran

testlib/infra.py

@@ -30,7 +30,6 @@
 
 # isort: THIRDPARTY
 import dbus
-from justbytes import Range
 
 from .dbus import StratisDbus, manager_interfaces
 from .utils import exec_command, process_exists, terminate_traces
@@ -45,7 +44,6 @@
 MOUNT_POINT_SUFFIX = "_stratisd_mounts"
 UMOUNT = "umount"
 MOUNT = "mount"
-STRATIS_METADATA_LEN = Range(8192, 512)
 
 
 def clean_up():  # pylint: disable=too-many-branches,too-many-locals