QNX: Fix compilation with Qt 4.

Change-Id: I8607dd339f5c6e3580f2e17c8ca3b7bcbbb11a8e
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/plugins/qnx/qnxutils.cpp

@@ -196,13 +196,7 @@ QList<Utils::EnvironmentItem> QnxUtils::qnxEnvironmentFromNdkFile(const QString
             }
         }
 
-        QString modifieddValue;
-        if (Utils::HostOsInfo::isWindowsHost())
-            modifieddValue = modifiedValues.join(QLatin1Char(';'));
-        else if (Utils::HostOsInfo::isAnyUnixHost())
-            modifieddValue = modifiedValues.join(QLatin1Char(':'));
-
-        items.append(Utils::EnvironmentItem(key, modifieddValue));
+        items.append(Utils::EnvironmentItem(key, modifiedValues.join(QString(Utils::HostOsInfo::pathListSeparator()))));
     }
 
     return items;