Removes unused type converter.

Android/app/src/main/java/com/majinnaibu/monstercards/data/converters/SetOfSavingThrowConverter.java

@@ -1,31 +0,0 @@
-package com.majinnaibu.monstercards.data.converters;
-
-
-import androidx.room.TypeConverter;
-
-import com.google.gson.Gson;
-import com.google.gson.reflect.TypeToken;
-import com.majinnaibu.monstercards.models.SavingThrow;
-
-import java.lang.reflect.Type;
-import java.util.HashSet;
-import java.util.Set;
-
-public class SetOfSavingThrowConverter {
-
-    @TypeConverter
-    public static String fromSetOfSavingThrow(Set<SavingThrow> savingThrows) {
-        Gson gson = new Gson();
-        SavingThrow[] saves = new SavingThrow[savingThrows.size()];
-        savingThrows.toArray(saves);
-        return gson.toJson(saves);
-    }
-
-    @TypeConverter
-    public static Set<SavingThrow> setOfSavingThrowFromString(String string) {
-        Gson gson = new Gson();
-        Type setType = new TypeToken<HashSet<SavingThrow>>() {
-        }.getType();
-        return gson.fromJson(string, setType);
-    }
-}