Do not make kit names needlessly ugly

Change-Id: I18590604c307f0da831aa15efaf113633cd9a014
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

src/plugins/projectexplorer/kit.cpp

@@ -150,6 +150,8 @@ void Kit::setDisplayName(const QString &name)
 
     QStringList nameList;
     foreach (Kit *p, pm->kits()) {
+        if (p == this)
+            continue;
         nameList << p->displayName();
         foreach (KitInformation *ki, kitInfo) {
             const QString postfix = ki->displayNamePostfix(p);