cxl: Remove leftover attribute documentation in 'struct cxl_dev_state'

commit 14d78874 ("cxl/mem: Consolidate CXL DVSEC Range enumeration
in the core")

...removed @info from 'struct cxl_dev_state', but neglected to remove
the corresponding kernel-doc entry. Complete the removal.
Reported-by: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
Closes: http://lore.kernel.org/r/20230606121054.000069e1@Huawei.comReviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/168679259703.3436160.12583306507362357946.stgit@dwillia2-xfh.jf.intel.comSigned-off-by: Dan Williams <dan.j.williams@intel.com>

drivers/cxl/cxlmem.h

@@ -287,7 +287,6 @@ struct cxl_poison_state {
  * @next_volatile_bytes: volatile capacity change pending device reset
  * @next_persistent_bytes: persistent capacity change pending device reset
  * @component_reg_phys: register base of component registers
- * @info: Cached DVSEC information about the device.
  * @serial: PCIe Device Serial Number
  * @event: event log driver state
  * @poison: poison driver state info