Move QmlConsole to Debugger

Now it is closer to its only user and possibly reusable for no-QML uses
there.  We also drop the QML/JS syntax checker. The application being
debugged can already tell us about syntax errors. There is no need to
duplicate that functionality.

Change-Id: I2ba151f9f4c854c6119ba5462c21be40bddcebf9
Reviewed-by: Ulf Hermann <ulf.hermann@theqtcompany.com>
Reviewed-by: hjk <hjk@theqtcompany.com>

src/plugins/qmljstools/qmljstoolsplugin.h

@@ -43,7 +43,6 @@ QT_END_NAMESPACE
 namespace QmlJSTools {
 
 class QmlJSToolsSettings;
-class QmlConsoleManager;
 
 namespace Internal {
 
@@ -75,7 +74,6 @@ private slots:
 
 private:
     ModelManager *m_modelManager;
-    QmlConsoleManager *m_consoleManager;
     QmlJSToolsSettings *m_settings;
     QAction *m_resetCodeModelAction;