minor: remove unnecessary import

SVN: 17004

openbis/sourceTest/java/ch/systemsx/cisd/openbis/systemtest/SystemTestCase.java

@@ -16,8 +16,6 @@
 
 package ch.systemsx.cisd.openbis.systemtest;
 
-import javax.servlet.http.HttpServletRequest;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.mock.web.MockHttpServletRequest;
 import org.springframework.test.context.ContextConfiguration;