Remove legacy code of Spoiler Messages impl

src/Globals.h

@@ -49,7 +49,6 @@
 constexpr auto MESSAGE_MAX_CHARS = 1e4;
 
 // XML namespaces
-#define NS_SPOILERS "urn:xmpp:spoiler:0"
 #define NS_CARBONS "urn:xmpp:carbons:2"
 
 // SQL

src/Message.cpp

@@ -194,26 +194,6 @@ void Message::setMediaSize(const qint64 &mediaSize)
 	m_mediaSize = mediaSize;
 }
 
-bool Message::isSpoiler() const
-{
-	return m_isSpoiler;
-}
-
-void Message::setIsSpoiler(bool isSpoiler)
-{
-	m_isSpoiler = isSpoiler;
-}
-
-QString Message::spoilerHint() const
-{
-	return m_spoilerHint;
-}
-
-void Message::setSpoilerHint(const QString &spoilerHint)
-{
-	m_spoilerHint = spoilerHint;
-}
-
 QString Message::errorText() const
 {
 	return m_errorText;

src/Message.h

@@ -82,12 +82,6 @@ public:
 	qint64 mediaSize() const;
 	void setMediaSize(const qint64 &mediaSize);
 
-	bool isSpoiler() const;
-	void setIsSpoiler(bool isSpoiler);
-
-	QString spoilerHint() const;
-	void setSpoilerHint(const QString &spoilerHint);
-
 	QString errorText() const;
 	void setErrorText(const QString &errText);
 
@@ -138,16 +132,6 @@ private:
 	 */
 	QDateTime m_mediaLastModified;
 
-	/**
-	 * True if the message is a spoiler message.
-	 */
-	bool m_isSpoiler = false;
-
-	/**
-	 * Hint of the spoiler message.
-	 */
-	QString m_spoilerHint;
-
 	/**
 	 * Text description of an error if it ever happened to the message
 	 */

src/MessageHandler.cpp

@@ -171,15 +171,6 @@ void MessageHandler::sendMessage(const QString& toJid,
 	if (isSpoiler) {
 		msg.setIsSpoiler(isSpoiler);
 		msg.setSpoilerHint(spoilerHint);
-
-		// parsing/serialization of spoilers isn't implemented in QXmpp
-		QXmppElementList extensions = msg.extensions();
-		QXmppElement spoiler = QXmppElement();
-		spoiler.setTagName("spoiler");
-		spoiler.setValue(msg.spoilerHint());
-		spoiler.setAttribute("xmlns", NS_SPOILERS);
-		extensions.append(spoiler);
-		msg.setExtensions(extensions);
 	} else if (MediaUtils::isGeoLocation(msg.body())) {
 		const QUrl url(msg.body());
 		const QMimeType mimeType = MediaUtils::mimeType(url);