empty include/asm-generic/vga.h

all places that use anything defined in it (vgacon, mdacon and
vga16fb) are built only on architectures that have all that
stuff in their native asm/vga.h

allows to kill stub asm/vga.h on sh, while we are at it...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Author: Al Viro

arch/sh/include/asm/vga.h

@@ -1,25 +1,4 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-/*
- *	Access to VGA videoram
- *
- *	(c) 1998 Martin Mares <mj@ucw.cz>
- */
 #ifndef __ASM_GENERIC_VGA_H
 #define __ASM_GENERIC_VGA_H
-
-/*
- *	On most architectures that support VGA, we can just
- *	recalculate addresses and then access the videoram
- *	directly without any black magic.
- *
- *	Everyone else needs to ioremap the address and use
- *	proper I/O accesses.
- */
-#ifndef VGA_MAP_MEM
-#define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x)
-#endif
-
-#define vga_readb(x) (*(x))
-#define vga_writeb(x, y) (*(y) = (x))
-
-#endif /* _ASM_GENERIC_VGA_H */
+#endif /* __ASM_GENERIC_VGA_H */