Fix warnings about MSVC/WinCE code

Change-Id: I3bea69802eb5f3d5d79bd2643a218052f96d7917
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/projectexplorer/abstractmsvctoolchain.cpp

@@ -161,6 +161,7 @@ bool AbstractMsvcToolChain::canClone() const
 
 QByteArray AbstractMsvcToolChain::msvcPredefinedMacros(const Utils::Environment& env) const
 {
+    Q_UNUSED(env);
     QByteArray predefinedMacros = "#define __MSVCRT__\n"
             "#define __w64\n"
             "#define __int64 long long\n"

src/plugins/projectexplorer/wincetoolchain.cpp

@@ -453,6 +453,7 @@ QList<ToolChain *> WinCEToolChainFactory::autoDetect()
 
 QString WinCEToolChain::autoDetectCdbDebugger(QStringList *checkedDirectories /* = 0 */)
 {
+    Q_UNUSED(checkedDirectories);
     return QString();
 }