Remove immediate parameter when unsubscribing

Author: simolus3

crates/core/src/sync/subscriptions.rs

@@ -75,7 +75,6 @@ pub struct UnsubscribeFromStream {
     pub stream: String,
     #[serde(default)]
     pub params: Option<Box<serde_json::value::RawValue>>,
-    pub immediate: bool,
 }
 
 pub fn apply_subscriptions(

dart/test/sync_stream_test.dart

@@ -245,7 +245,6 @@ void main() {
           'unsubscribe': {
             'stream': 'my_stream',
             'params': null,
-            'immediate': false,
           }
         }),
       );
@@ -367,7 +366,7 @@ void main() {
       control(
         'subscriptions',
         json.encode({
-          'unsubscribe': {'stream': 'a', 'immediate': false}
+          'unsubscribe': {'stream': 'a'}
         }),
       );
       control('stop', null);