lib: peer_manager: remove extra newlines

Removes extra newlines.

Signed-off-by: Mirko Covizzi <[email protected]>

Author: MirkoCovizzi

lib/peer_manager/modules/peer_id.c

@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
  */
 
-
 #include <stdint.h>
 #include <string.h>
 #include <limits.h>

lib/peer_manager/modules/pm_buffer.c

@@ -4,7 +4,6 @@
  * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
  */
 
-
 #include <stdbool.h>
 #include <string.h>
 #include <zephyr/sys/atomic.h>