nvme: remove spdk_nvme_ctrlr_get_registers declaration and map entry

				    int slot, enum spdk_nvme_fw_commit_action commit_action,

				    struct spdk_nvme_status *completion_status);

/**

 * Return virtual address of PCIe NVM I/O registers

 *

 * This function returns a pointer to the PCIe I/O registers for a controller

 * or NULL if unsupported for this transport.

 *

 * \param ctrlr Controller whose registers are to be accessed.

 *

 * \return Pointer to virtual address of register bank, or NULL.

 */

volatile struct spdk_nvme_registers *spdk_nvme_ctrlr_get_registers(struct spdk_nvme_ctrlr *ctrlr);

/**

 * Reserve the controller memory buffer for data transfer use.

 *

	spdk_nvme_ctrlr_delete_ns;

	spdk_nvme_ctrlr_format;

	spdk_nvme_ctrlr_update_firmware;

	spdk_nvme_ctrlr_get_registers;

	spdk_nvme_ctrlr_reserve_cmb;

	spdk_nvme_ctrlr_map_cmb;

	spdk_nvme_ctrlr_unmap_cmb;