Clean up code.

src/main/java/moe/nekojimi/chords/commands/Command.java

@@ -16,7 +16,6 @@ public abstract class Command
 
     protected final Chords bot;
     protected final String keyword;
-    protected String documentation;
 
     public Command(Chords bot, String keyword)
     {
@@ -31,9 +30,8 @@ public abstract class Command
         return keyword;
     }
 
-    public String getDocumentation()
-    {
-        return documentation;
-    }
+//    public abstract String synopsis();
+//
+//    public abstract String help();
 
 }

src/main/java/moe/nekojimi/chords/commands/Invocation.java

@@ -19,7 +19,6 @@ package moe.nekojimi.chords.commands;
 import java.util.List;
 import net.dv8tion.jda.api.entities.Message;
 import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
-import net.dv8tion.jda.api.requests.restaction.MessageCreateAction;
 
 /**
  *