Refactor _dlpack.pyx functions

Refactors `from_dlpack_versioned_capsule` into `from_dlpack_capsule`

`_numpy_array_interface_from_dl_tensor` now takes a pointer to a DLTensor to guarantee no copy is made

Author: ndgrigorian

dpctl/tensor/_dlpack.pxd

@@ -44,7 +44,6 @@ cpdef object to_dlpack_capsule(usm_ndarray array) except +
 cpdef object to_dlpack_versioned_capsule(usm_ndarray array, bint copied) except +
 cpdef object numpy_to_dlpack_versioned_capsule(ndarray array, bint copied) except +
 cpdef object from_dlpack_capsule(object dltensor) except +
-cpdef object from_dlpack_versioned_capsule(object dltensor) except +
 
 cdef int get_parent_device_ordinal_id(SyclDevice dev) except *