test/py: Drop importing utils as util

Now that we have a shorter name, we don't need this sort of thing.
Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> # test_android
diff --git a/test/py/tests/test_sandbox_opts.py b/test/py/tests/test_sandbox_opts.py
index 1690140..f50302c 100644
--- a/test/py/tests/test_sandbox_opts.py
+++ b/test/py/tests/test_sandbox_opts.py
@@ -4,7 +4,7 @@
 
 import pytest
 
-import utils as util
+import utils
 
 # This is needed for Azure, since the default '..' directory is not writeable
 TMPDIR = '/tmp/test_cmdline'
@@ -15,7 +15,7 @@
     """Test building sandbox without CONFIG_CMDLINE"""
     cons = ubman
 
-    out = util.run_and_log(
+    utils.run_and_log(
         cons, ['./tools/buildman/buildman', '-m', '--board', 'sandbox',
                '-a', '~CMDLINE', '-o', TMPDIR])
 
@@ -25,6 +25,6 @@
     """Test building sandbox without CONFIG_LTO"""
     cons = ubman
 
-    out = util.run_and_log(
+    utils.run_and_log(
         cons, ['./tools/buildman/buildman', '-m', '--board', 'sandbox',
                '-a', '~LTO', '-o', TMPDIR])