HBASE-16066 Resolve RpC_REPEATED_CONDITIONAL_TEST findbugs warnings in HMaster, addendum to HBASE-15467

hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java

@@ -1386,7 +1386,6 @@ public class HMaster extends HRegionServer implements MasterServices {
       for (TableName table : allEnabledTables) {
         HTableDescriptor tblDesc = getTableDescriptors().get(table);
         if (table.isSystemTable() || (tblDesc != null &&
-            tblDesc != null &&
             !tblDesc.isNormalizationEnabled())) {
           LOG.debug("Skipping normalization for table: " + table + ", as it's either system"
               + " table or doesn't have auto normalization turned on");