Remove unused includes

src/main.cpp

@@ -14,13 +14,14 @@
 #include <QGuiApplication>
 #endif
 #include <QCommandLineParser>
+#include <QDir>
 #include <QIcon>
 #include <QQmlApplicationEngine>
+#include <QQmlContext>
 #include <QSqlDatabase>
 #include <QSqlError>
-#include <QSqlQuery>
+#include <QStandardPaths>
 #include <QUrl>
-#include <QtQml>
 #include <kontrast.h>
 
 const QString DRIVER(QStringLiteral("QSQLITE"));

src/savedcolormodel.cpp

@@ -4,10 +4,9 @@
 
 #include "savedcolormodel.h"
 
-#include <QCoreApplication>
 #include <QDebug>
-#include <QDir>
 #include <QSqlError>
+#include <QSqlQuery>
 #include <QSqlRecord>
 #include <QStandardPaths>
 

src/savedcolormodel.h

@@ -5,10 +5,8 @@
 
 #pragma once
 
-#include <QAbstractListModel>
 #include <QColor>
 #include <QSqlDatabase>
-#include <QSqlQuery>
 #include <QSqlTableModel>
 
 struct ColorCombination {