powerpc, 8260: remove support for mpc8260

There was for long time no activity in the 8260 area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 8260,
so remove it.

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

post/drivers/memory.c

@@ -170,14 +170,7 @@ DECLARE_GLOBAL_DATA_PTR;
  */
 static void move64(const unsigned long long *src, unsigned long long *dest)
 {
-#if defined(CONFIG_MPC8260)
-	asm ("lfd  0, 0(3)\n\t" /* fpr0	  =  *scr	*/
-	 "stfd 0, 0(4)"		/* *dest  =  fpr0	*/
-	 : : : "fr0" );		/* Clobbers fr0		*/
-    return;
-#else
 	*dest = *src;
-#endif
 }
 
 /*