[NO ISSUE][OTH] Remove Unused Variable

- user model changes: no
- storage format changes: no
- interface changes: no

Change-Id: Ie782fd0bc081f3daa5eb77d2db556a1effb5600e
Reviewed-on: https://asterix-gerrit.ics.uci.edu/2949
Reviewed-by: Murtadha Hubail <mhubail@apache.org>
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Michael Blow <mblow@apache.org>
diff --git a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/ioopcallbacks/LSMIOOperationCallback.java b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/ioopcallbacks/LSMIOOperationCallback.java
index 53bc31b..0aa46a8 100644
--- a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/ioopcallbacks/LSMIOOperationCallback.java
+++ b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/ioopcallbacks/LSMIOOperationCallback.java
@@ -72,7 +72,6 @@
     private long persistenceLsn = 0L;
     private int pendingFlushes = 0;
     private Deque<ILSMComponentId> componentIds = new ArrayDeque<>();
-    private boolean firstAllocation = true;
 
     public LSMIOOperationCallback(DatasetInfo dsInfo, ILSMIndex lsmIndex, ILSMComponentId componentId,
             IIndexCheckpointManagerProvider indexCheckpointManagerProvider) {