staging: r8188eu: remove IS_HARDWARE_TYPE_8188* macros

The IS_HARDWARE_TYPE_8188* macros are not needed because the driver
is for RTL8188EU chips, remove them.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210903093354.12645-6-straube.linux@gmail.com


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