Remove unused GET handling from /echo endpoint

webapp/src/main/java/se/metasolutions/recruit/resources/EchoResource.java

@@ -15,11 +15,6 @@ import java.io.IOException;
 public class EchoResource extends BaseResource {
     private final static Logger log = LoggerFactory.getLogger(EchoResource.class);
 
-    @Get
-    public Representation respond() {
-        return new StringRepresentation("Please POST some content to echo.");
-    }
-
     @Post()
     public Representation echo(Representation entity) throws IOException {
         return getEchoResponse(entity);