Loading elements collections doesn't freeze gui anymore.

sources/ElementsCollection/elementslocation.cpp

@@ -125,16 +125,6 @@ QString ElementsLocation::baseName() const {
 	return(QString());
 }
 
-/**
- * @brief ElementsLocation::projectId
- * This method is used to know if an element belongs to
- * a project or not.
- * @return Element Project Id
- */
-int ElementsLocation::projectId() const {
-	return QETApp::projectId(m_project);
-}
-
 /**
  * @brief ElementsLocation::collectionPath
  * Return the path of the represented element relative to collection