Refactor cards and token images code (#10139):

- removed outdated token store format (example: BIRD.W.BIRD.CREATURE.1.1.full.jpg)
 - removed duplicated cache images code;
 - removed duplicated set code fields;
 - removed outdated auto-generated thumb files (also all *.thumb.zip files will be deleted on startup);

Mage/src/main/java/mage/game/permanent/token/TokenImpl.java

@@ -85,12 +85,6 @@ public abstract class TokenImpl extends MageObjectImpl implements Token {
         this.tokenDescriptor = tokenDescriptor();
     }
 
-    @Override
-    public String getTokenDescriptor() {
-        this.tokenDescriptor = tokenDescriptor();
-        return tokenDescriptor;
-    }
-
     private String tokenDescriptor() {
         String strName = this.name.replaceAll("[^a-zA-Z0-9]", "");
         String strColor = this.color.toString().replaceAll("[^a-zA-Z0-9]", "");