Revert "Get back "Cancel tiles also in wsd's senderqueue""

This reverts commit f1a385be98.

It's not easy, it can interfere the tile tracking.

Change-Id: I1e4ec9b4d66e5e912873f673fd5cb71ba55a9332
Reviewed-on: https://gerrit.libreoffice.org/59326
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>
Tested-by: Tamás Zolnai <tamas.zolnai@collabora.com>

wsd/ClientSession.cpp

@@ -1001,11 +1001,6 @@ bool ClientSession::handleKitToClientMessage(const char* buffer, const int lengt
     return forwardToClient(payload);
 }
 
-void ClientSession::cancelTilesInQueue()
-{
-    _senderQueue.cancelTiles();
-}
-
 bool ClientSession::forwardToClient(const std::shared_ptr<Message>& payload)
 {
     if (isCloseFrame())

wsd/ClientSession.hpp

@@ -99,8 +99,6 @@ public:
         }
     }
 
-    void cancelTilesInQueue();
-
     /// Set the save-as socket which is used to send convert-to results.
     void setSaveAsSocket(const std::shared_ptr<StreamSocket>& socket)
     {

wsd/DocumentBroker.cpp

@@ -1448,7 +1448,6 @@ void DocumentBroker::cancelTileRequests(const std::shared_ptr<ClientSession>& se
     // Clear tile requests
     session->clearTilesOnFly();
     session->getRequestedTiles() = boost::none;
-    session->cancelTilesInQueue();
 
     session->clearTileSubscription();
 

wsd/SenderQueue.hpp

@@ -84,15 +84,6 @@ public:
         }
     }
 
-    void cancelTiles()
-    {
-        std::remove_if(_queue.begin(), _queue.end(),
-            [](const queue_item_t& cur)
-            {
-                return cur->firstToken() == "tile:";
-            });
-    }
-
 private:
     /// Deduplicate messages based on the new one.
     /// Returns true if the new message should be