Remove obsolete code

Author: jeffgbutler

src/main/java/org/mybatis/dynamic/sql/SqlBuilder.java

@@ -56,10 +56,6 @@
 import org.mybatis.dynamic.sql.select.function.Substring;
 import org.mybatis.dynamic.sql.select.function.Subtract;
 import org.mybatis.dynamic.sql.select.function.Upper;
-import org.mybatis.dynamic.sql.select.join.EqualTo;
-import org.mybatis.dynamic.sql.select.join.EqualToValue;
-import org.mybatis.dynamic.sql.select.join.JoinCondition;
-import org.mybatis.dynamic.sql.select.join.JoinCriterion;
 import org.mybatis.dynamic.sql.update.UpdateDSL;
 import org.mybatis.dynamic.sql.update.UpdateModel;
 import org.mybatis.dynamic.sql.util.Buildable;

src/main/java/org/mybatis/dynamic/sql/select/QueryExpressionDSL.java

@@ -362,11 +362,11 @@ public <T> JoinSpecificationFinisher(TableExpression table, BindableColumn<T> jo
             this.joinType = joinType;
             addJoinSpecificationSupplier(this::buildJoinSpecification);
 
-            ColumnAndConditionCriterion<T> c = ColumnAndConditionCriterion.withColumn(joinColumn)
+            ColumnAndConditionCriterion<T> criterion = ColumnAndConditionCriterion.withColumn(joinColumn)
                     .withCondition(joinCondition)
                     .build();
 
-            setInitialCriterion(c);
+            setInitialCriterion(criterion);
         }
 
         public <T> JoinSpecificationFinisher(TableExpression table, BindableColumn<T> joinColumn,
@@ -375,12 +375,12 @@ public <T> JoinSpecificationFinisher(TableExpression table, BindableColumn<T> jo
             this.joinType = joinType;
             addJoinSpecificationSupplier(this::buildJoinSpecification);
 
-            ColumnAndConditionCriterion<T> c = ColumnAndConditionCriterion.withColumn(joinColumn)
+            ColumnAndConditionCriterion<T> criterion = ColumnAndConditionCriterion.withColumn(joinColumn)
                     .withCondition(joinCondition)
                     .withSubCriteria(Arrays.asList(subCriteria))
                     .build();
 
-            setInitialCriterion(c);
+            setInitialCriterion(criterion);
         }
 
         private JoinSpecification buildJoinSpecification() {