This function initializes a zoo_op_t with the arguments for a ZOO_DELETE_OP.
\param op A pointer to the zoo_op_t to be initialized.
\param path the name of the node. Expressed as a file name with slashes
separating ancestors of the node.
\param version the expected version of the node. The function will fail if the
actual version of the node does not match the expected version.
If -1 is used the version check will not take place.
\brief zoo_delete_op_init.
This function initializes a zoo_op_t with the arguments for a ZOO_DELETE_OP.
\param op A pointer to the zoo_op_t to be initialized. \param path the name of the node. Expressed as a file name with slashes separating ancestors of the node. \param version the expected version of the node. The function will fail if the actual version of the node does not match the expected version. If -1 is used the version check will not take place.