lsa-segment-storage: fix segfault in scheduled erase of lsa segment

refs: #4520

Change-Id: I597604b4be9e063a08ff5031faa8d305408b676d
diff --git a/src/lsdb.cpp b/src/lsdb.cpp
index 5ebef48..a38dd55 100644
--- a/src/lsdb.cpp
+++ b/src/lsdb.cpp
@@ -72,8 +72,7 @@
                    const uint64_t& sequenceNumber) {
              return isLsaNew(routerName, lsaType, sequenceNumber);
            }, m_nlsr.getConfParameter())
-  , m_lsaStorage(scheduler,
-                 ndn::time::seconds(m_nlsr.getConfParameter().getLsaRefreshTime()))
+  , m_lsaStorage(scheduler)
   , m_lsaRefreshTime(0)
   , m_adjLsaBuildInterval(ADJ_LSA_BUILD_INTERVAL_DEFAULT)
   , m_sequencingManager()