Remove CommandBase#handler field, which ends a step in this refactoring.

Author: vietj

vertx-sql-client/src/main/java/io/vertx/sqlclient/internal/command/CommandBase.java

@@ -17,30 +17,9 @@
 
 package io.vertx.sqlclient.internal.command;
 
-import io.vertx.core.AsyncResult;
-import io.vertx.core.Completable;
-import io.vertx.core.Future;
-import io.vertx.core.Handler;
-
 /**
  * @author <a href="mailto:[email protected]">Julien Viet</a>
  */
 
 public abstract class CommandBase<R> {
-
-  public Completable<R> handler;
-
-  public final void fail(Throwable err) {
-    complete(Future.failedFuture(err));
-  }
-
-  public final void fail(String failureMsg) {
-    complete(Future.failedFuture(failureMsg));
-  }
-
-  public final void complete(AsyncResult<R> resp) {
-    if (handler != null) {
-      handler.complete(resp.result(), resp.cause());
-    }
-  }
 }

vertx-sql-client/src/main/java/io/vertx/sqlclient/internal/command/CommandResponse.java

@@ -46,8 +46,6 @@ public AsyncResult<R> toAsyncResult() {
   public final void fire() {
     if (handler != null) {
       handler.complete(res.result(), res.cause());
-    } else if (cmd.handler != null) {
-      cmd.handler.complete(res.result(), res.cause());
     }
   }
 }