arm: Remove redundant loading of image copy start offse

Because the beginning is already computed

Signed-off-by: Liya Huang <1425075683@qq.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/lib/relocate.S b/arch/arm/lib/relocate.S
index 345e282..bffadfe 100644
--- a/arch/arm/lib/relocate.S
+++ b/arch/arm/lib/relocate.S
@@ -83,8 +83,6 @@
 	add	r1, r3			/* r1 <- Run &__image_copy_start */
 	subs	r4, r0, r1		/* r4 <- Run to copy offset      */
 	beq	relocate_done		/* skip relocation               */
-	ldr	r1, _image_copy_start_ofs
-	add	r1, r3			/* r1 <- Run &__image_copy_start */
 	ldr	r2, _image_copy_end_ofs
 	add	r2, r3			/* r2 <- Run &__image_copy_end   */
 copy_loop: