Remove an old compatibility import from rbt status.
This removes the old `backports.shutil_get_terminal_size()` import,
which isn't needed on Python 3 anymore (and could potentially pose
problems).
This is a trivial fix.
@@ -2,12 +2,9 @@ from __future__ import unicode_literals
import logging
import re
+from shutil import get_terminal_size
import texttable as tt
-try:
- from backports.shutil_get_terminal_size import get_terminal_size
-except ImportError:
- from shutil import get_terminal_size
from rbtools.commands import Command, Option
from rbtools.utils.users import get_username
