Nokia RX-51: Remove label copy_kernel_start from lowlevel_init.S

Label copy_kernel_start is now unused. Remove it.

Signed-off-by: Pali Rohár <pali@kernel.org>
diff --git a/board/nokia/rx51/lowlevel_init.S b/board/nokia/rx51/lowlevel_init.S
index c1785bc..53697fd 100644
--- a/board/nokia/rx51/lowlevel_init.S
+++ b/board/nokia/rx51/lowlevel_init.S
@@ -46,7 +46,6 @@
  * (CONFIG_SYS_TEXT_BASE).
  */
 
-copy_kernel_start:
 	/* r0 - start of kernel before */
 	adr	r0, kernoffs	/* r0 - current address of kernoffs section */
 	ldr	r1, kernoffs	/* r1 - offset of kernel image from kernoffs section */