[ZEPPELIN-6195] Revert indentation changes

Author: ParkGyeongTae

zeppelin-integration/src/test/java/org/apache/zeppelin/WebDriverManager.java

@@ -143,7 +143,7 @@ private WebDriver constructWebDriver(int port) {
           @Override
           public Boolean apply(WebDriver d) {
             return d.findElement(By.xpath("//i[@uib-tooltip='WebSocket Connected']"))
-                    .isDisplayed();
+                .isDisplayed();
           }
         });
         loaded = true;