Remove unused code for Tagged Users (#3208)

Co-authored-by: Paweł <zneix@zneix.eu>
Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>

src/singletons/Settings.hpp

@@ -22,7 +22,6 @@ namespace chatterino {
 class HighlightPhrase;
 class HighlightBlacklistUser;
 class IgnorePhrase;
-class TaggedUser;
 class FilterRecord;
 class Nickname;
 
@@ -40,7 +39,6 @@ public:
     SignalVector<QString> &mutedChannels;
     SignalVector<FilterRecordPtr> &filterRecords;
     SignalVector<Nickname> &nicknames;
-    //SignalVector<TaggedUser> &taggedUsers;
     SignalVector<ModerationAction> &moderationActions;
 
     bool isHighlightedUser(const QString &username);

src/singletons/Theme.hpp

@@ -56,11 +56,6 @@ public:
 
 private:
     void actuallyUpdate(double hue, double multiplier) override;
-    void fillLookupTableValues(double (&array)[360], double from, double to,
-                               double fromValue, double toValue);
-
-    double middleLookupTable_[360] = {};
-    double minLookupTable_[360] = {};
 
     pajlada::Signals::NoArgSignal repaintVisibleChatWidgets_;