Fix import in mobile test

Author: rgonalo

src/test/java/io/appium/java_client/MobileDriverIOSTest.java

@@ -20,6 +20,7 @@
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
+import static org.junit.Assert.*;
 import org.openqa.selenium.remote.CapabilityType;
 import org.openqa.selenium.remote.DesiredCapabilities;
 import org.openqa.selenium.remote.RemoteWebElement;