ppc4xx: Remove remnants from ocotea, taishan, ebony and taihu

The removal of some PPC4xx boards did not catch all references to
these boards. This patch now removes all remnants still left.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Stefan Roese <sr@denx.de>

arch/powerpc/cpu/ppc4xx/start.S

@@ -1795,34 +1795,11 @@ ppc405ep_init:
 ..no_pllset:
 #endif /* CONFIG_BUBINGA */
 
-#ifdef CONFIG_TAIHU
-	mfdcr	r4, CPC0_BOOT
-	andi.	r5, r4, CPC0_BOOT_SEP@l
-	bne	strap_1			/* serial eeprom present */
-	addis	r5,0,CPLD_REG0_ADDR@h
-	ori	r5,r5,CPLD_REG0_ADDR@l
-	andi.	r5, r5, 0x10
-	bne	_pci_66mhz
-#endif /* CONFIG_TAIHU */
-
 	addis	r3,0,PLLMR0_DEFAULT@h	/* PLLMR0 default value */
 	ori	r3,r3,PLLMR0_DEFAULT@l	/* */
 	addis	r4,0,PLLMR1_DEFAULT@h	/* PLLMR1 default value */
 	ori	r4,r4,PLLMR1_DEFAULT@l	/* */
 
-#ifdef CONFIG_TAIHU
-	b	1f
-_pci_66mhz:
-	addis	r3,0,PLLMR0_DEFAULT_PCI66@h
-	ori	r3,r3,PLLMR0_DEFAULT_PCI66@l
-	addis	r4,0,PLLMR1_DEFAULT_PCI66@h
-	ori	r4,r4,PLLMR1_DEFAULT_PCI66@l
-	b	1f
-strap_1:
-	mfdcr	r3, CPC0_PLLMR0
-	mfdcr	r4, CPC0_PLLMR1
-#endif /* CONFIG_TAIHU */
-
 1:
 	b	pll_write		/* Write the CPC0_PLLMR with new value */