DEPS: fix import (pandas-dev#34472)

Author: fangchenli

ci/deps/azure-37-minimum_versions.yaml

@@ -18,7 +18,7 @@ dependencies:
   - jinja2=2.8
   - numba=0.46.0
   - numexpr=2.6.2
-  - numpy=1.15.4
+  - numpy=1.16.0
   - openpyxl=2.5.7
   - pytables=3.4.3
   - python-dateutil=2.7.3

pandas/__init__.py

@@ -20,7 +20,6 @@
 
 # numpy compat
 from pandas.compat.numpy import (
-    _np_version_under1p16,
     _np_version_under1p17,
     _np_version_under1p18,
     _is_numpy_dev,