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;
diff --git a/babeld/babel_main.h b/babeld/babel_main.h
index a21a527..fb22c58 100644
--- a/babeld/babel_main.h
+++ b/babeld/babel_main.h
@@ -43,7 +43,6 @@
 extern int debug;
 extern int wireless_hello_interval, wired_hello_interval, idle_hello_interval;
 extern int idle_time;
-extern int link_detect;
 
 extern unsigned char myid[8];