Refactor: Remove unused functions

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

@@ -39,6 +39,7 @@ public class CityGmlZipEntry implements Serializable {
         }
         if (errorType != null){
             logger.warn("Tried loading erroneous CityGmlZipEntry");
+            return;
         }
         try{
             CityGmlParser.gagLogger(true);
@@ -92,12 +93,6 @@ public class CityGmlZipEntry implements Serializable {
         this.parentArchive = parentArchive;
     }
 
-    protected CityGmlZipEntry(String fileName, boolean decompressed) {
-        this.fileName = fileName;
-        this.model = null;
-        this.decompressed = decompressed;
-    }
-
     public void setArchive(CityGmlZipArchive archive){
         parentArchive = archive;
     }
@@ -107,10 +102,6 @@ public class CityGmlZipEntry implements Serializable {
     }
 
 
-    public boolean isValidated(){
-        return validated;
-    }
-
     public String getFileName() {
         return fileName;
     }