Remove 'support_interface_skip_height' setting.

Was used for run-time efficiency, but it wasn't really ever set beyond one layer-height, which made it rather useless.

frontend part of CURA-11157 -- needed version upgrader as well, since it's the first alteration

plugins/VersionUpgrade/VersionUpgrade56to57/VersionUpgrade56to57.py

@@ -0,0 +1,95 @@
+# Copyright (c) 2024 UltiMaker
+# Cura is released under the terms of the LGPLv3 or higher.
+
+import configparser
+from typing import Tuple, List
+import io
+from UM.VersionUpgrade import VersionUpgrade
+
+_REMOVED_SETTINGS = {
+    "support_interface_skip_height",
+}
+_NEW_SETTING_VERSION = "23"
+
+
+class VersionUpgrade56to57(VersionUpgrade):
+    def upgradePreferences(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
+        """
+        Upgrades preferences to remove from the visibility list the settings that were removed in this version.
+        It also changes the preferences to have the new version number.
+
+        This removes any settings that were removed in the new Cura version.
+        :param serialized: The original contents of the preferences file.
+        :param filename: The file name of the preferences file.
+        :return: A list of new file names, and a list of the new contents for
+        those files.
+        """
+        parser = configparser.ConfigParser(interpolation = None)
+        parser.read_string(serialized)
+
+        # Update version number.
+        parser["metadata"]["setting_version"] = _NEW_SETTING_VERSION
+
+        # Remove deleted settings from the visible settings list.
+        if "general" in parser and "visible_settings" in parser["general"]:
+            visible_settings = set(parser["general"]["visible_settings"].split(";"))
+            for removed in _REMOVED_SETTINGS:
+                if removed in visible_settings:
+                    visible_settings.remove(removed)
+
+            parser["general"]["visible_settings"] = ";".join(visible_settings)
+
+        result = io.StringIO()
+        parser.write(result)
+        return [filename], [result.getvalue()]
+
+    def upgradeInstanceContainer(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
+        """
+        Upgrades instance containers to remove the settings that were removed in this version.
+        It also changes the instance containers to have the new version number.
+
+        This removes any settings that were removed in the new Cura version and updates settings that need to be updated
+        with a new value.
+
+        :param serialized: The original contents of the instance container.
+        :param filename: The original file name of the instance container.
+        :return: A list of new file names, and a list of the new contents for
+        those files.
+        """
+        parser = configparser.ConfigParser(interpolation = None, comment_prefixes = ())
+        parser.read_string(serialized)
+
+        # Update version number.
+        parser["metadata"]["setting_version"] = _NEW_SETTING_VERSION
+
+        if "values" in parser:
+            # Remove deleted settings from the instance containers.
+            for removed in _REMOVED_SETTINGS:
+                if removed in parser["values"]:
+                    del parser["values"][removed]
+
+        result = io.StringIO()
+        parser.write(result)
+        return [filename], [result.getvalue()]
+
+    def upgradeStack(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
+        """
+        Upgrades stacks to have the new version number.
+
+        :param serialized: The original contents of the stack.
+        :param filename: The original file name of the stack.
+        :return: A list of new file names, and a list of the new contents for
+        those files.
+        """
+        parser = configparser.ConfigParser(interpolation = None)
+        parser.read_string(serialized)
+
+        # Update version number.
+        if "metadata" not in parser:
+            parser["metadata"] = {}
+
+        parser["metadata"]["setting_version"] = _NEW_SETTING_VERSION
+
+        result = io.StringIO()
+        parser.write(result)
+        return [filename], [result.getvalue()]