ia64: remove unneeded uapi asm-generic wrappers

These are listed in include/uapi/asm-generic/Kbuild, so Kbuild will
automatically generate them.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/ia64/include/uapi/asm/errno.h

-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#include <asm-generic/errno.h>

arch/ia64/include/uapi/asm/ioctl.h

-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#include <asm-generic/ioctl.h>

arch/ia64/include/uapi/asm/ioctls.h

-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_IA64_IOCTLS_H
-#define _ASM_IA64_IOCTLS_H
-
-#include <asm-generic/ioctls.h>
-
-#endif /* _ASM_IA64_IOCTLS_H */