Rework the ErrorCodes one last time. Hopefully.

The previous version was almost impossible for a human being
to understand. Following the maxim that you need to be twice
as smart to debug something as to write it, going for a nice
and clear version instead.

java/client/src/org/openqa/selenium/WebDriverException.java

@@ -17,19 +17,18 @@
 
 package org.openqa.selenium;
 
+import org.openqa.selenium.internal.BuildInfo;
+
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import java.util.HashMap;
 import java.util.Map;
 
-import org.openqa.selenium.internal.BuildInfo;
-
 public class WebDriverException extends RuntimeException {
 
   public static final String SESSION_ID = "Session ID";
   public static final String DRIVER_INFO = "Driver info";
   protected static final String BASE_SUPPORT_URL = "http://seleniumhq.org/exceptions/";
-  protected Integer statusCode;
 
   private Map<String, String> extraInfo = new HashMap<>();
 
@@ -49,23 +48,6 @@ public WebDriverException(String message, Throwable cause) {
     super(message, cause);
   }
 
-  public WebDriverException(String message, Throwable cause, Integer statusCode) {
-    super(message, cause);
-    this.statusCode = statusCode;
-  }
-
-  /**
-   * DO NOT USE -
-   * This is to help the standalone server map exceptions from remote ends back to clients without
-   * losing the original status code provide (if one is). This will be going away in 4.0 when status
-   * codes are only string messages
-   * @return status code from the response of the remote end driver.
-   */
-  @Deprecated
-  public Integer getStatusCode() {
-    return statusCode;
-  }
-
   @Override
   public String getMessage() {
     return createMessage(super.getMessage());