remove unused var

Author: DomGarguilo

test/src/main/java/org/apache/accumulo/test/MaxWalReferencedIT.java

@@ -86,7 +86,6 @@ public void testWALMaxReferenced() throws Exception {
       log.info("Created table {} with splits. Now writing data.", tableName);
 
       // Write data multiple times until we see the WAL count exceed WAL_MAX_REFERENCED
-      final int rowsPerIteration = 30000;
       AtomicInteger iteration = new AtomicInteger(0);
       Wait.waitFor(() -> {