Style: Remove unused imports

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/datastructure/LibraryObject.java

@@ -5,12 +5,9 @@ import de.hft.stuttgart.citydoctor2.parser.CityGmlParser;
 import de.hft.stuttgart.citydoctor2.parser.InvalidGmlFileException;
 import de.hft.stuttgart.citydoctor2.parser.ParserConfiguration;
 import de.hft.stuttgart.citydoctor2.zip.CityGmlZipEntry;
-import de.hft.stuttgart.citydoctor2.zip.CityGmlZipInputStream;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
-import java.io.IOException;
-import java.io.InputStream;
 import java.io.Serial;
 import java.nio.file.Path;
 import java.util.List;

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/parser/CityGmlParser.java

@@ -26,7 +26,6 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
-import java.util.zip.ZipFile;
 
 import javax.xml.XMLConstants;
 import javax.xml.namespace.QName;

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/CityGmlZipEntry.java

@@ -8,11 +8,9 @@ import de.hft.stuttgart.citydoctor2.parser.ParserConfiguration;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
-import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.zip.ZipEntry;
-import java.util.zip.ZipFile;
 
 public class CityGmlZipEntry {