CLEANUP: server: remove unused err section in server_finalize_init

Since commit 980855bd953c ("BUG/MEDIUM: server: initialize the orphaned
conns lists and tasks at the end"), we no longer use err section.

This should fix github issue #438

Signed-off-by: William Dauchy <w.dauchy@criteo.com>
diff --git a/src/server.c b/src/server.c
index 6212a42..14ff716 100644
--- a/src/server.c
+++ b/src/server.c
@@ -2053,8 +2053,6 @@
 	srv_lb_commit_status(srv);
 
 	return 0;
-err:
-	return ERR_ALERT | ERR_FATAL;
 }
 
 /*