soc/ti/am335x: Remove superfluous formats

These formats are already included in memlayout.ld.

Change-Id: I89d226440308ce3fbe00382698dcd8c88863e694
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83723
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

src/soc/ti/am335x/header.ld

@@ -1,8 +1,4 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
-/* We use ELF as output format. So that we can debug the code in some form. */
-OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
-OUTPUT_ARCH(arm)
-
 #define OMAP_HEADER 1
 #include "memlayout.ld"