create_images.py: Remove unused imports.
diff --git a/buildkite/create_images.py b/buildkite/create_images.py
index 087db36..22997ec 100755
--- a/buildkite/create_images.py
+++ b/buildkite/create_images.py
@@ -14,7 +14,6 @@
# See the License for the specific language governing permissions and
# limitations under the License.
-import getpass
import json
import os
import queue
@@ -24,7 +23,6 @@
import tempfile
import threading
import time
-import urllib.request
from datetime import datetime
DEBUG = False