Remove all that extension business and replace with internal properties

crates/caldav/src/calendar_object/resource.rs

@@ -4,7 +4,6 @@ use actix_web::{dev::ResourceMap, web::Data, HttpRequest};
 use async_trait::async_trait;
 use derive_more::derive::{From, Into};
 use rustical_dav::{
-    extensions::CommonPropertiesProp,
     privileges::UserPrivilegeSet,
     resource::{Resource, ResourceService},
 };
@@ -28,7 +27,7 @@ pub enum CalendarObjectPropName {
     Getcontenttype,
 }
 
-#[derive(Default, Deserialize, Serialize, From, PartialEq)]
+#[derive(Default, Deserialize, Serialize, PartialEq)]
 #[serde(rename_all = "kebab-case")]
 pub enum CalendarObjectProp {
     // WebDAV (RFC 2518)
@@ -39,10 +38,6 @@ pub enum CalendarObjectProp {
     #[serde(rename = "C:calendar-data")]
     CalendarData(String),
 
-    #[serde(skip_deserializing, rename = "$value")]
-    #[from]
-    ExtCommonProperties(CommonPropertiesProp),
-
     #[serde(other)]
     #[default]
     Invalid,