staging: rtl8188eu: remove redundant includes

Both osdep_service.h and drv_types.h are included from hal_intf.h,
so remove the redundant includes from hal_intf.c.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>