Remove unneeded defines.

Mostly Q_DISABLE_COPY that were covered by the un-copy-ability of the
respective base classes. Includes a few "stylistic" whitespace changes.

Change-Id: I31ca0e7bada5ed0f34776976efe22ddc444a5bf2
Reviewed-on: http://codereview.qt.nokia.com/1609
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/coreplugin/variablemanager.h

@@ -39,10 +39,6 @@
 #include <QtCore/QScopedPointer>
 #include <QtCore/QString>
 
-QT_BEGIN_NAMESPACE
-class QFileInfo;
-QT_END_NAMESPACE
-
 namespace Utils {
 class AbstractMacroExpander;
 }
@@ -53,7 +49,7 @@ class VariableManagerPrivate;
 class CORE_EXPORT VariableManager : public QObject
 {
     Q_OBJECT
-    Q_DISABLE_COPY(VariableManager)
+
 public:
     VariableManager();
     ~VariableManager();