refactor: remove Secure-Join-Fingerprint header

src/mimefactory.rs

@@ -1085,13 +1085,6 @@ impl<'a> MimeFactory<'a> {
                         ));
                     }
 
-                    let fingerprint = msg.param.get(Param::Arg3).unwrap_or_default();
-                    if !fingerprint.is_empty() {
-                        headers.protected.push(Header::new(
-                            "Secure-Join-Fingerprint".into(),
-                            fingerprint.into(),
-                        ));
-                    }
                     if let Some(id) = msg.param.get(Param::Arg4) {
                         headers
                             .protected

src/param.rs

@@ -84,9 +84,6 @@ pub enum Param {
     /// For Messages
     Arg2 = b'F',
 
-    /// `Secure-Join-Fingerprint` header for `{vc,vg}-request-with-auth` messages.
-    Arg3 = b'G',
-
     /// For Messages
     Arg4 = b'H',
 

src/securejoin/bobstate.rs

@@ -18,7 +18,6 @@ use crate::contact::{Contact, Origin};
 use crate::context::Context;
 use crate::events::EventType;
 use crate::headerdef::HeaderDef;
-use crate::key::{load_self_public_key, DcKey};
 use crate::message::{Message, Viewtype};
 use crate::mimeparser::{MimeMessage, SystemMessage};
 use crate::param::Param;
@@ -374,10 +373,6 @@ async fn send_handshake_message(
             // Sends the Secure-Join-Auth header in mimefactory.rs.
             msg.param.set(Param::Arg2, invite.authcode());
             msg.param.set_int(Param::GuaranteeE2ee, 1);
-
-            // Sends our own fingerprint in the Secure-Join-Fingerprint header.
-            let bob_fp = load_self_public_key(context).await?.fingerprint();
-            msg.param.set(Param::Arg3, bob_fp.hex());
         }
     };