Don't prefix incoming messages with protocol name

Matterbridge's API doesn't always include the chat protocol in
its streaming JSON. The protocol doesn't seem like very
useful information to display anyway.

src/main/java/com/rosspaffett/mattercraft/ChatMessage.java

@@ -3,7 +3,6 @@ package com.rosspaffett.mattercraft;
 import net.minecraft.util.text.StringTextComponent;
 
 public class ChatMessage {
-    private String protocol;
     private final String text;
     private final String username;
 
@@ -20,28 +19,8 @@ public class ChatMessage {
         return this.username;
     }
 
-    public String humanizedProtocol() {
-        return MatterbridgeProtocol.humanize(protocol);
-    }
-
-    public String textWithUsername() {
-        return "<" + getUsername() + "> " + getText();
-    }
-
     public String toString() {
-        if (protocol == null) {
+        return "<" + getUsername() + "> " + getText();
-            return toStringWithoutProtocol();
-        } else {
-            return toStringWithProtocol();
-        }
-    }
-
-    private String toStringWithProtocol() {
-        return "[" + humanizedProtocol() + "] " + textWithUsername();
-    }
-
-    private String toStringWithoutProtocol() {
-        return textWithUsername();
     }
 
     public StringTextComponent toTextComponent() {

src/main/java/com/rosspaffett/mattercraft/MatterbridgeProtocol.java

@@ -1,19 +0,0 @@
-package com.rosspaffett.mattercraft;
-
-import java.util.HashMap;
-
-/**
- * Maps Matterbridge's chat protocol IDs to human-readable versions.
- */
-public class MatterbridgeProtocol {
-    private static final HashMap<String, String> IDS_TO_HUMANIZED_NAMES = new HashMap<>();
-
-    static {
-        IDS_TO_HUMANIZED_NAMES.put("discord", "Discord");
-        IDS_TO_HUMANIZED_NAMES.put("irc", "IRC");
-    }
-
-    public static String humanize(String id) {
-        return IDS_TO_HUMANIZED_NAMES.getOrDefault(id, id);
-    }
-}