Removing obsolete imports

Author: GGoetzelmann

src/test/java/edu/kit/scc/dem/wapsrv/model/formats/JsonLdProfileRegistryTest.java

@@ -4,10 +4,8 @@
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
-import java.net.MalformedURLException;
 import java.net.URI;
 import java.net.URISyntaxException;
-import java.net.URL;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Properties;