Remove __future__ imports

These aren't needed in modern Python 3 versions.

Signed-off-by: Stephen Finucane <stephenfin@redhat.com>
Change-Id: I5e81d6fb2e2cb8e4bfae4ed746da002f44e871c4

swiftclient/multithreading.py

@@ -13,8 +13,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import print_function
-
 import six
 import sys
 

swiftclient/service.py

@@ -12,9 +12,8 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import unicode_literals
-import logging
 
+import logging
 import os
 
 from collections import defaultdict

swiftclient/shell.py

@@ -14,8 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import print_function, unicode_literals
-
 import argparse
 import getpass
 import io

test/unit/test_service.py

@@ -13,7 +13,7 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import unicode_literals
+
 import contextlib
 import mock
 import os

test/unit/test_shell.py

@@ -12,7 +12,6 @@
 # implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import unicode_literals
 
 import contextlib
 from genericpath import getmtime