Remove tensor.view(), that does not work and has never been used.

I'm positive that it has never been used, because there's an error in its definition, that would raise an error as soon as we try to call it.

Remove tensor.view(), that does not work and has never been used.
ab29559f · Pascal Lamblin · aaa62838 · ab29559f
--- a/theano/tensor/basic.py
+++ b/theano/tensor/basic.py
@@ -2303,11 +2303,6 @@ def tensor_copy(a):
    """Create a duplicate of `a` (with duplicated storage)"""
 pprint.assign(tensor_copy, printing.IgnorePrinter())

-
-@_redefine(elemwise.Elemwise(scal.identity, inplace_pattern = {0: [0]}))
-def view(a):
-    """Create a duplicate of `a` (with shared storage)"""
-
 @constructor
 def sum(input, axis = None):
    """WRITEME"""