Remove unused code

messageviewer/src/header/grantleeheaderformatter.cpp

@@ -397,9 +397,6 @@ QString GrantleeHeaderFormatter::format(const QString &absolutePath, const Grant
     if (!style->vCardName().isEmpty()) {
         headerObject.insert(QStringLiteral("vcardname"), style->vCardName());
     }
-    if (!style->collectionName().isEmpty()) {
-        headerObject.insert(QStringLiteral("collectionname"), style->collectionName());
-    }
 
     if (isPrinting) {
         //provide a bit more left padding when printing

messageviewer/src/header/headerstyle.cpp

@@ -50,7 +50,6 @@ public:
     GrantleeTheme::Theme mTheme;
     const HeaderStrategy *mStrategy = nullptr;
     QString mVCardName;
-    QString mCollectionName;
     QString mAttachmentHtml;
     MimeTreeParser::NodeHelper *mNodeHelper = nullptr;
     QObject *mSourceObject = nullptr;
@@ -172,16 +171,6 @@ GrantleeTheme::Theme HeaderStyle::theme() const
     return d->mTheme;
 }
 
-void HeaderStyle::setCollectionName(const QString &name)
-{
-    d->mCollectionName = name;
-}
-
-QString HeaderStyle::collectionName() const
-{
-    return d->mCollectionName;
-}
-
 bool HeaderStyle::readOnlyMessage() const
 {
     return d->mReadOnlyMessage;

messageviewer/src/header/headerstyle.h

@@ -108,8 +108,6 @@ public:
 
     void setTheme(const GrantleeTheme::Theme &theme);
     Q_REQUIRED_RESULT GrantleeTheme::Theme theme() const;
-    void setCollectionName(const QString &name);
-    Q_REQUIRED_RESULT QString collectionName() const;
 
     Q_REQUIRED_RESULT bool readOnlyMessage() const;
     void setReadOnlyMessage(bool readOnlyMessage);

messageviewer/src/viewer/viewer_p.cpp

@@ -952,10 +952,7 @@ QString ViewerPrivate::writeMessageHeader(KMime::Message *aMsg, KMime::Content *
         status.setStatusFromFlags(mMessageItem.flags());
 
         headerStylePlugin()->headerStyle()->setMessageStatus(status);
-        headerStylePlugin()->headerStyle()->setCollectionName(
-            mMessageItem.parentCollection().displayName());
     } else {
-        headerStylePlugin()->headerStyle()->setCollectionName(QString());
         headerStylePlugin()->headerStyle()->setReadOnlyMessage(true);
     }