staging: r8188eu: remove basic_types.h

Remove file basic_types.h because the content of this file is not used
anywhere.

Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Nam Cao <namcaov@gmail.com>
Link: https://lore.kernel.org/r/1b8200420a2a1b7276f49eb3c2768ef39d641713.1655745123.git.namcaov@gmail.com


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