powerpc: remove 4xx support

There was for long time no activity in the 4xx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 4xx,
so remove it.

Signed-off-by: Heiko Schocher <hs@denx.de>

cmd/bedbug.c

@@ -47,13 +47,6 @@ int bedbug_puts (const char *str)
 void bedbug_init (void)
 {
 	/* -------------------------------------------------- */
-
-#if defined(CONFIG_4xx)
-	void bedbug405_init (void);
-
-	bedbug405_init ();
-#endif
-
 	return;
 }				/* bedbug_init */