bigarray: multiply imported but unused

We stopped using numpy.multiply in 73926487 (*: It is not safe to use
multiply.reduce() - it overflows).

bigarray/__init__.py

@@ -36,7 +36,7 @@ of physical RAM.
 
 from __future__ import print_function
 from wendelin.lib.calc import mul
-from numpy import ndarray, dtype, multiply, sign, newaxis
+from numpy import ndarray, dtype, sign, newaxis
 import logging
 
 

bigarray/tests/test_basic.py

@@ -21,7 +21,7 @@ from wendelin.bigfile import BigFile
 from wendelin.lib.mem import memcpy
 from wendelin.lib.calc import mul
 from numpy import ndarray, dtype, int32, uint32, uint8, all, zeros, arange, \
-        multiply, array_equal, asarray
+        array_equal, asarray
 
 from pytest import raises