QtSupport: Drop one suite of QtVersion constructors

Use default plus polish afterwards instead.

Change-Id: Ibd137562128445a5bae5aaa4fc5fcce2df6c3e38
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/qnx/qnxqtversion.cpp

@@ -46,12 +46,6 @@ static char SDP_PATH_KEY[] = "SDKPath";
 
 QnxQtVersion::QnxQtVersion() = default;
 
-QnxQtVersion::QnxQtVersion(const Utils::FileName &path) :
-    QtSupport::BaseQtVersion(path)
-{
-    setUnexpandedDisplayName(defaultUnexpandedDisplayName(path, false));
-}
-
 QnxQtVersion *QnxQtVersion::clone() const
 {
     return new QnxQtVersion(*this);