crypto: Remove the deserialize implementations for our user identity.

Deriving Serialize/Deserialize for an AtomicBool doesn't seem to be
implemented under WASM. So remove the derives for now.

matrix_sdk_crypto/Cargo.toml

@@ -20,7 +20,7 @@ sqlite_cryptostore = ["sqlx"]
 docs = ["sqlite_cryptostore"]
 
 [dependencies]
-async-trait = "0.1.38"
+async-trait = "0.1.40"
 
 matrix-sdk-common-macros = { version = "0.1.0", path = "../matrix_sdk_common_macros" }
 matrix-sdk-common = { version = "0.1.0", path = "../matrix_sdk_common" }

matrix_sdk_crypto/src/user_identity.rs

@@ -234,7 +234,7 @@ impl SelfSigningPubkey {
 }
 
 /// Enum over the different user identity types we can have.
-#[derive(Debug, Clone, Serialize, Deserialize)]
+#[derive(Debug, Clone)]
 pub enum UserIdentities {
     /// Our own user identity.
     Own(OwnUserIdentity),
@@ -371,7 +371,7 @@ impl UserIdentity {
 ///
 /// This identity can verify other identities as well as devices belonging to
 /// the identity.
-#[derive(Debug, Clone, Deserialize, Serialize)]
+#[derive(Debug, Clone)]
 pub struct OwnUserIdentity {
     user_id: Arc<UserId>,
     master_key: MasterPubkey,