payloads: Drop unneeded empty lines

Change-Id: I6faeb7c783052edc4217d2d301dbb905e1fc6a19
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44605
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

payloads/libpayload/include/string.h

@@ -83,5 +83,4 @@ size_t strlcpy(char *d, const char *s, size_t n);
 size_t strlcat(char *d, const char *s, size_t n);
 /** @} */
 
-
 #endif