spotless (#34)

* Do not hardcode tag names and remove not needed README comment

* Remove useless dependencies

* Deduplicate build code

* Run spotless to keep codebase clean

mc/1.8.9/src/main/java/dev/u9g/minecraftdatagenerator/generators/InstrumentsDataGenerator.java

@@ -25,4 +25,4 @@ public class InstrumentsDataGenerator implements IDataGenerator {
         }
         return array;
     }
-}
+}