Remove deprecated Query Bean fetchAll() - migrate to fetch()

```java

  /**
   * Deprecated in favor of fetch().
   */
  @Deprecated
  public final R fetchAll() {
    return fetch();
  }

```

ebean-querybean/src/main/java/io/ebean/typequery/TQAssocBean.java

@@ -100,14 +100,6 @@ public abstract class TQAssocBean<T, R, QB> extends TQAssoc<T, R> {
     return _root;
   }
 
-  /**
-   * Deprecated in favor of fetch().
-   */
-  @Deprecated
-  public final R fetchAll() {
-    return fetch();
-  }
-
   /**
    * Eagerly fetch this association loading the specified properties.
    */