manager: define erase method

The erase method can erase an entry object specified by id.

Change-Id: I86bb2a214b8cf9b951af37f69767ff025f2f5fd0
Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
diff --git a/log_manager.hpp b/log_manager.hpp
index e2a3359..71b6e71 100644
--- a/log_manager.hpp
+++ b/log_manager.hpp
@@ -61,6 +61,12 @@
         void commit(uint64_t transactionId, std::string errMsg) override;
 
 
+        /** @brief Erase specified entry d-bus object
+         *
+         * @param[in] entryId - unique identifier of the entry
+         */
+        void erase(uint32_t entryId);
+
     private:
         /** @brief Call metadata handler(s), if any. Handlers may create
          *         associations.