CppTools: Remove some pointless declarations

* Unneeded private declared constructors
* Q_DISABLE_COPY for classes deriving from QObject (not copyable)

Change-Id: I89669e8bb062cda16bab5812e2ac591f9dcf4af2
Reviewed-by: Marco Bubke <marco.bubke@theqtcompany.com>

src/plugins/cpptools/baseeditordocumentparser.h

@@ -41,8 +41,6 @@ namespace CppTools {
 class CPPTOOLS_EXPORT BaseEditorDocumentParser : public QObject
 {
     Q_OBJECT
-    Q_DISABLE_COPY(BaseEditorDocumentParser)
-    BaseEditorDocumentParser();
 
 public:
     BaseEditorDocumentParser(const QString &filePath);