Self review clean up

Signed-off-by: Matheus Cruz <matheuscruz.dev@gmail.com>

Author: mcruzdev

impl/core/src/main/java/io/serverlessworkflow/impl/executors/RegularTaskExecutor.java

@@ -35,8 +35,7 @@ protected RegularTaskExecutor(RegularTaskExecutorBuilder<T> builder) {
   public abstract static class RegularTaskExecutorBuilder<T extends TaskBase>
       extends AbstractTaskExecutorBuilder<T, RegularTaskExecutor<T>> {
 
-    TaskExecutor<?> taskExecutor;
-    private TransitionInfoBuilder transition;
+      private TransitionInfoBuilder transition;
 
     protected RegularTaskExecutorBuilder(
         WorkflowMutablePosition position, T task, WorkflowDefinition definition) {