Remove duplicated method

src/main/java/wtf/beatrice/hidekobot/util/CommandUtil.java

@@ -0,0 +1,28 @@
+package wtf.beatrice.hidekobot.util;
+
+import net.dv8tion.jda.api.events.interaction.component.ButtonInteractionEvent;
+import wtf.beatrice.hidekobot.Cache;
+import wtf.beatrice.hidekobot.datasources.DatabaseSource;
+
+public class CommandUtil
+{
+
+    /**
+     * Function to delete a message when a user clicks the "delete" button attached to that message.
+     * This will check in the database if that user ran the command originally.
+     *
+     * @param event the button interaction event.
+     */
+    public static void delete(ButtonInteractionEvent event)
+    {
+        // check if the user interacting is the same one who ran the command
+        if (!(Cache.getDatabaseSource().isUserTrackedFor(event.getUser().getId(), event.getMessageId()))) {
+            event.reply("❌ You did not run this command!").setEphemeral(true).queue();
+            return;
+        }
+
+        // delete the message
+        event.getInteraction().getMessage().delete().queue();
+        // no need to manually untrack it from database, it will be purged on the next planned check.
+    }
+}