src/console: Drop unneeded empty lines

Change-Id: I94f92ba4385285496ede0c33fc25addd6c4bfeae
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44607
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

src/console/vtxprintf.c

@@ -99,7 +99,6 @@ static int number(void (*tx_byte)(unsigned char byte, void *data),
 	return count;
 }
 
-
 int vtxprintf(void (*tx_byte)(unsigned char byte, void *data),
 	       const char *fmt, va_list args, void *data)
 {