Remove unused forward declaration

src/actionshandler.h

@@ -9,7 +9,6 @@
 
 #include "neochatroom.h"
 
-class CustomEmojiModel;
 class NeoChatRoom;
 
 /**

src/chatdocumenthandler.h

@@ -10,7 +10,6 @@
 #include "models/completionmodel.h"
 #include "neochatroom.h"
 
-class QTextDocument;
 class NeoChatRoom;
 class SyntaxHighlighter;
 

src/controller.h

@@ -16,7 +16,6 @@
 
 class NeoChatRoom;
 class TrayIcon;
-class QWindow;
 class QQuickTextDocument;
 
 namespace Quotient

src/matriximageprovider.h

@@ -10,11 +10,6 @@
 
 #include <QReadWriteLock>
 
-namespace Quotient
-{
-class Connection;
-}
-
 /**
  * @class ThumbnailResponse
  *

src/models/accountemoticonmodel.h

@@ -13,8 +13,6 @@
 
 #include <Quotient/connection.h>
 
-class ImagePacksModel;
-
 /**
  * @class AccountEmoticonModel
  *

src/models/livelocationsmodel.h

@@ -10,11 +10,6 @@
 #include <QPointer>
 #include <QRectF>
 
-namespace Quotient
-{
-class RoomMessageEvent;
-}
-
 struct LiveLocationData {
     QString eventId;
     QString senderId;