Remove remaining added code comments & JavaDocs

Signed-off-by: Dennis-Mircea Ciupitu <dennis.mircea.ciupitu@gmail.com>

Author: Dennis-Mircea

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/LeaderElectionManager.java

@@ -55,9 +55,6 @@ public class LeaderElectionManager {
   private final ConfigurationService configurationService;
   private String leaseNamespace;
   private String leaseName;
-  // Set in stop() before cancelling the leader-election future. Checked in stopLeading() so that
-  // a graceful shutdown does not call System.exit, which would otherwise deadlock against the
-  // JVM shutdown hook lock when stop() is invoked from a JVM shutdown hook.
   private final AtomicBoolean stoppingGracefully = new AtomicBoolean(false);
 
   LeaderElectionManager(

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/Operator.java

@@ -210,30 +210,6 @@ public synchronized void start() {
     }
   }
 
-  /**
-   * Stops the operator and releases its resources. The shutdown sequence is:
-   *
-   * <ol>
-   *   <li>Stop the controller manager, halting reconciliation of all registered controllers.
-   *   <li>Stop the executor service manager, waiting up to {@link
-   *       io.javaoperatorsdk.operator.api.config.ConfigurationService#reconciliationTerminationTimeout()}
-   *       for in-flight reconciliations to complete.
-   *   <li>Stop the leader-election manager, cancelling the leader-election future and releasing any
-   *       held lease.
-   *   <li>Close the {@link KubernetesClient} if {@link
-   *       io.javaoperatorsdk.operator.api.config.ConfigurationService#closeClientOnStop()} is
-   *       {@code true} (the default).
-   * </ol>
-   *
-   * <p>It is safe to call this method from a JVM shutdown hook (see {@link #installShutdownHook()})
-   * as the graceful-shutdown path coordinates with the leader-election callbacks so that {@code
-   * System.exit} is not invoked while the JVM is already shutting down.
-   *
-   * <p>If the operator was never successfully started, this method only stops the executor service
-   * manager so that no thread pools are leaked.
-   *
-   * @throws OperatorException if an error occurs during shutdown
-   */
   @Override
   public void stop() throws OperatorException {
     Duration reconciliationTerminationTimeout =