CLEANUP: peers: Remove unreachable code in peer_session_create()

An error label is now unreachable in peer_session_create().

This patch should fix the issue #1704.
diff --git a/src/peers.c b/src/peers.c
index 6f71ded..e37b5b7 100644
--- a/src/peers.c
+++ b/src/peers.c
@@ -3219,9 +3219,6 @@
 	appctx_wakeup(appctx);
 	return appctx;
 
-	/* Error unrolling */
- out_free_appctx:
-	appctx_free_on_early_error(appctx);
  out_close:
 	return NULL;
 }