BUG: revert numpy.pxd to 0.29.13 (GH-3114)

Cython/Includes/numpy/__init__.pxd

@@ -244,27 +244,14 @@ cdef extern from "numpy/arrayobject.h":
 
         cdef:
             # Only taking a few of the most commonly used and stable fields.
+            # One should use PyArray_* macros instead to access the C fields.
             char *data
-            dtype descr
+            int ndim "nd"
+            npy_intp *shape "dimensions"
+            npy_intp *strides
+            dtype descr  # deprecated since NumPy 1.7 !
             PyObject* base
 
-            @property
-            cdef int ndim(self):
-                return PyArray_NDIM(self)
-
-            @property
-            cdef npy_intp *shape(self):
-                return PyArray_DIMS(self)
-
-            @property
-            cdef npy_intp *strides(self):
-                return PyArray_STRIDES(self)
-
-            @property
-            cdef npy_intp size(self):
-                return PyArray_SIZE(ndarray)
-
-
         # Note: This syntax (function definition in pxd files) is an
         # experimental exception made for __getbuffer__ and __releasebuffer__
         # -- the details of this may change.