imp - Take out built-in types

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We've taken out built-in types for the calendar parser because it doesn't have "PREF", "HOME", and "WORK".

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Type: imp
Breaking: False
Doc Required: False
Backport Required: False
Part: 1/1

VisualCard.Calendar/Parsers/VCalendarParser.cs

@@ -69,7 +69,6 @@ public Parts.Calendar Parse()
             // Iterate through all the lines
             bool constructing = false;
             StringBuilder valueBuilder = new();
-            string[] allowedTypes = ["HOME", "WORK", "PREF"];
             List<(string, Parts.Calendar)> begins = [];
             for (int i = 0; i < CalendarContent.Length; i++)
             {
@@ -164,8 +163,8 @@ public Parts.Calendar Parse()
                     foreach (string elementType in elementTypes)
                     {
                         string elementTypeUpper = elementType.ToUpper();
-                        if (!allowedTypes.Contains(elementTypeUpper) && !extraAllowedTypes.Contains(elementTypeUpper) && !elementTypeUpper.StartsWith("X-"))
-                            throw new InvalidDataException($"Part info type {classType?.Name ?? "<null>"} doesn't support property type {elementTypeUpper} because the following base types are supported: [{string.Join(", ", allowedTypes)}] and the extra types are supported: [{string.Join(", ", extraAllowedTypes)}]");
+                        if (!extraAllowedTypes.Contains(elementTypeUpper) && !elementTypeUpper.StartsWith("X-"))
+                            throw new InvalidDataException($"Part info type {classType?.Name ?? "<null>"} doesn't support property type {elementTypeUpper} because the following types are supported: [{string.Join(", ", extraAllowedTypes)}]");
                     }
 
                     // Handle the part type