fw: invoke FaceTable::remove upon Face::onFail

refs #1358

Change-Id: Ic19a88f0aea5adefbd3179de09f9f4e049922ff8
diff --git a/daemon/mgmt/face-manager.cpp b/daemon/mgmt/face-manager.cpp
index bf31a10..6407237 100644
--- a/daemon/mgmt/face-manager.cpp
+++ b/daemon/mgmt/face-manager.cpp
@@ -632,7 +632,7 @@
   shared_ptr<Face> target = m_faceTable.get(options.getFaceId());
   if (target)
     {
-      m_faceTable.remove(target);
+      // don't call m_faceTable.remove(target): it's called by target->close() via onFail
       target->close();
     }
   sendResponse(requestName, 200, "Success");