MIPS: BMIPS: Remove special handling of CONFIG_MIPS_ELF_APPENDED_DTB=y

The ELF appended dtb can be accessed now via 'fw_passed_dtb'.
Signed-off-by: Yasha Cherikovsky <yasha.che3@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/20804/
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org

arch/mips/bmips/setup.c

@@ -153,8 +153,6 @@ void __init plat_time_init(void)
 	mips_hpt_frequency = freq;
 }
 
-extern const char __appended_dtb;
-
 void __init plat_mem_setup(void)
 {
 	void *dtb;
@@ -164,15 +162,10 @@ void __init plat_mem_setup(void)
 	ioport_resource.start = 0;
 	ioport_resource.end = ~0;
 
-#ifdef CONFIG_MIPS_ELF_APPENDED_DTB
-	if (!fdt_check_header(&__appended_dtb))
-		dtb = (void *)&__appended_dtb;
-	else
-#endif
 	/* intended to somewhat resemble ARM; see Documentation/arm/Booting */
 	if (fw_arg0 == 0 && fw_arg1 == 0xffffffff)
 		dtb = phys_to_virt(fw_arg2);
-	else if (fw_passed_dtb) /* UHI interface */
+	else if (fw_passed_dtb) /* UHI interface or appended dtb */
 		dtb = (void *)fw_passed_dtb;
 	else if (__dtb_start != __dtb_end)
 		dtb = (void *)__dtb_start;