[java] Deleting unused imports

Author: barancev

java/client/src/org/openqa/selenium/support/events/WebDriverListener.java

@@ -22,7 +22,6 @@
 import org.openqa.selenium.By;
 import org.openqa.selenium.Cookie;
 import org.openqa.selenium.Dimension;
-import org.openqa.selenium.OutputType;
 import org.openqa.selenium.Point;
 import org.openqa.selenium.WebDriver;
 import org.openqa.selenium.WebElement;