Revert "Write a list of object names to the global metadata of ufp files"

This was accidentally committed to master

This reverts commit 67836851

plugins/UFPWriter/UFPWriter.py

@@ -18,9 +18,6 @@ from cura.Snapshot import Snapshot
 from cura.Utils.Threading import call_on_qt_thread
 
 from UM.i18n import i18nCatalog
-
-METADATA_OBJECTS_PATH = "metadata/objects"
-
 catalog = i18nCatalog("cura")
 
 
@@ -56,8 +53,6 @@ class UFPWriter(MeshWriter):
         archive = VirtualFile()
         archive.openStream(stream, "application/x-ufp", OpenMode.WriteOnly)
 
-        self._writeObjectList(archive)
-
         #Store the g-code from the scene.
         archive.addContentType(extension = "gcode", mime_type = "text/x-gcode")
         gcode_textio = StringIO() #We have to convert the g-code into bytes.
@@ -144,15 +139,3 @@ class UFPWriter(MeshWriter):
             Logger.error(error_msg)
             return False
         return True
-
-    @staticmethod
-    def _writeObjectList(archive):
-        """Write a json list of object names to the METADATA_OBJECTS_PATH metadata field
-
-        To retrieve, use: `archive.getMetadata(METADATA_OBJECTS_PATH)`
-        """
-        objectsModel = CuraApplication.getInstance().getObjectsModel()
-        objectMetas = [{"name": item["name"]} for item in objectsModel.items]
-
-        data = {METADATA_OBJECTS_PATH: objectMetas}
-        archive.setMetadata(data)