Remove unused import

Author: DiegoMzmn

backend/src/test/java/urjc/ovteaching/OpenViduTests.java

@@ -11,8 +11,6 @@
 
 import java.io.IOException;
 
-import javax.xml.ws.http.HTTPException;
-
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;