Remove unused imports.

pglombardo · pglombardo · commit 1d36e66178fe · 2017-06-29T16:15:06.000+02:00
diff --git a/tests/test_ot_span.py b/tests/test_ot_span.py
@@ -1,6 +1,4 @@
 import opentracing
-import instana.tracer
-import string
 from nose.tools import assert_equals
 
 
