Staging: rtl8723bs: remove named enums in drv_types.h

Remove the following unnecessary enum names or definitions in
include/drv_types.h:

	enum _nic_version	[definition]
	enum _iface_type	[name]
	enum adapter_type	[definition]
	enum driver_state	[name]

Signed-off-by: Marco Cesati <marcocesati@gmail.com>
Link: https://lore.kernel.org/r/20210324124456.25221-7-marcocesati@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>