Utils: Compile winutils on all platform

... and simplify "user" code.

Change-Id: I2dfa402f25ab83f1ab80adc0ac508e8383c69641
Reviewed-by: David Schulz <david.schulz@digia.com>

src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp

@@ -43,10 +43,7 @@
 
 #include <utils/fileutils.h>
 #include <utils/qtcprocess.h>
-
-#ifdef Q_OS_WIN
 #include <utils/winutils.h>
-#endif
 
 using namespace Core;
 using namespace QmlProjectManager::Internal;