Remove deprecated ExpressionList.setOrderBy() - migrate to orderBy()

Migrate to `.orderBy(String orderBy)`

```java

  /**
   * Deprecated migrate to {@link #orderBy(String)}
   */
  @Deprecated
  Query<T> setOrderBy(String orderBy);

```

ebean-api/src/main/java/io/ebean/ExpressionList.java

@@ -95,12 +95,6 @@ public interface ExpressionList<T> {
    */
   OrderBy<T> orderBy();
 
-  /**
-   * Deprecated migrate to {@link #orderBy(String)}
-   */
-  @Deprecated
-  Query<T> setOrderBy(String orderBy);
-
   /**
    * Apply the path properties to the query replacing the select and fetch clauses.
    */

ebean-core/src/main/java/io/ebeaninternal/server/expression/DefaultExpressionList.java

@@ -312,11 +312,6 @@ public class DefaultExpressionList<T> implements SpiExpressionList<T> {
     return this;
   }
 
-  @Override
-  public Query<T> setOrderBy(String orderBy) {
-    return query.order(orderBy);
-  }
-
   @Override
   public Query<T> orderById(boolean orderById) {
     return query.orderById(orderById);

ebean-core/src/main/java/io/ebeaninternal/server/expression/JunctionExpression.java

@@ -980,11 +980,6 @@ final class JunctionExpression<T> implements SpiJunction<T>, SpiExpression, Expr
     return exprList.setMaxRows(maxRows);
   }
 
-  @Override
-  public Query<T> setOrderBy(String orderBy) {
-    return exprList.setOrderBy(orderBy);
-  }
-
   @Override
   public Query<T> setUseCache(boolean useCache) {
     return exprList.setUseCache(useCache);