arm: mvebu: Remove commented example code

Include file debug_uart.h already contains documentation how to use it.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c
index 73c4b9a..742d66a 100644
--- a/arch/arm/mach-mvebu/spl.c
+++ b/arch/arm/mach-mvebu/spl.c
@@ -5,7 +5,6 @@
 
 #include <common.h>
 #include <dm.h>
-#include <debug_uart.h>
 #include <fdtdec.h>
 #include <hang.h>
 #include <image.h>
@@ -250,18 +249,6 @@
 	 */
 	board_early_init_f();
 
-	/* Example code showing how to enable the debug UART on MVEBU */
-#ifdef EARLY_UART
-	/*
-	 * Debug UART can be used from here if required:
-	 *
-	 * debug_uart_init();
-	 * printch('a');
-	 * printhex8(0x1234);
-	 * printascii("string");
-	 */
-#endif
-
 	/*
 	 * Use special translation offset for SPL. This needs to be
 	 * configured *before* spl_init() is called as this function