cleanup

src/main/java/gov/usgs/earthquake/nshmp/netcdf/www/SwaggerController.java

 package gov.usgs.earthquake.nshmp.netcdf.www;
 
 import java.nio.charset.StandardCharsets;
-import java.util.logging.Logger;
 import java.util.stream.Collectors;
 
 import javax.inject.Inject;