Revert ignoring network information in VersionUpgrader

As this will also remove them from machines that go through the VersionUpgrader.

plugins/VersionUpgrade/VersionUpgrade462to47/VersionUpgrade462to47.py

@@ -25,17 +25,6 @@ _removed_settings = {
     "support_tree_enable"
 }  # type: Set[str]
 
-_removed_machine_network_metadata = {
-    "um_cloud_cluster_id",
-    "um_network_key",
-    "um_linked_to_account",
-    "host_guid",
-    "removal_warning",
-    "group_name",
-    "group_size",
-    "connection_type"
-}  # type: Set[str]
-
 
 class VersionUpgrade462to47(VersionUpgrade):
     def upgradePreferences(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
@@ -148,11 +137,6 @@ class VersionUpgrade462to47(VersionUpgrade):
             parser["metadata"] = {}
         parser["metadata"]["setting_version"] = "15"
 
-        # Remove machine network information from project file
-        for network_info in _removed_machine_network_metadata:
-            if network_info in parser["metadata"]:
-                del parser["metadata"][network_info]
-
         # Update Pause at Height script parameters if present.
         if "post_processing_scripts" in parser["metadata"]:
             new_scripts_entries = []