Removed unused imports

Author: shirish87

src/test/java/com/browserstack/automate/AutomateClientTest.java

@@ -9,10 +9,7 @@
 import com.browserstack.automate.model.Build;
 import com.browserstack.automate.model.Project;
 import com.browserstack.automate.model.Session;
-import com.browserstack.client.BrowserStackClient.Product;
-import com.browserstack.client.exception.BrowserStackException;
 import com.browserstack.client.model.Browser;
-import com.browserstack.client.model.BrowserListing;
 import org.junit.Before;
 import org.junit.Test;