python/tests/test_source.py: remove unused import

diff --git a/python/tests/test_source.py b/python/tests/test_source.py
index 755c01e..d880917 100755 (executable)
--- a/python/tests/test_source.py
+++ b/python/tests/test_source.py
@@ -5,7 +5,6 @@ from nose2.tools import params
 from numpy.testing import TestCase, assert_equal
 from aubio import source
 from .utils import list_all_sounds
-import numpy as np
 
 import warnings
 warnings.filterwarnings('ignore', category=UserWarning, append=True)