babeld: remove useless variable, make local another.
diff --git a/babeld/babel_main.c b/babeld/babel_main.c
index b7fffc1..159ba65 100644
--- a/babeld/babel_main.c
+++ b/babeld/babel_main.c
@@ -80,9 +80,7 @@
 unsigned char myid[8];            /* unique id (mac address of an interface) */
 int debug = BABEL_DEBUG_COMMON;
 
-time_t reboot_time;
 int idle_time = 320;
-int link_detect = 0;
 int wireless_hello_interval = -1;
 int wired_hello_interval = -1;
 int idle_hello_interval = -1;
@@ -385,6 +383,7 @@
 static void
 babel_load_state_file(void)
 {
+    time_t reboot_time;
     reboot_time = babel_now.tv_sec;
     int fd;
     int rc;