api!: remove Stream implementation for EventEmitter

Cargo.lock

@@ -1189,7 +1189,6 @@ dependencies = [
  "parking_lot",
  "percent-encoding",
  "pgp",
- "pin-project",
  "pretty_assertions",
  "pretty_env_logger",
  "proptest",

Cargo.toml

@@ -72,7 +72,6 @@ once_cell = { workspace = true }
 percent-encoding = "2.3"
 parking_lot = "0.12"
 pgp = { version = "0.11", default-features = false }
-pin-project = "1"
 pretty_env_logger = { version = "0.5", optional = true }
 qrcodegen = "1.7.0"
 quick-xml = "0.31"

src/events.rs

@@ -1,7 +1,6 @@
 //! # Events specification.
 
 use async_channel::{self as channel, Receiver, Sender, TrySendError};
-use pin_project::pin_project;
 
 pub(crate) mod chatlist_events;
 mod payload;
@@ -60,14 +59,10 @@ impl Events {
 /// created events emitted by the [`Context`] will only be delivered to one of the
 /// `EventEmitter`s.
 ///
-/// The `EventEmitter` is also a [`Stream`], so a typical usage is in a `while let` loop.
-///
 /// [`Context`]: crate::context::Context
 /// [`Context::get_event_emitter`]: crate::context::Context::get_event_emitter
-/// [`Stream`]: futures::stream::Stream
 #[derive(Debug, Clone)]
-#[pin_project]
-pub struct EventEmitter(#[pin] Receiver<Event>);
+pub struct EventEmitter(Receiver<Event>);
 
 impl EventEmitter {
     /// Async recv of an event. Return `None` if the `Sender` has been dropped.
@@ -76,17 +71,6 @@ impl EventEmitter {
     }
 }
 
-impl futures::stream::Stream for EventEmitter {
-    type Item = Event;
-
-    fn poll_next(
-        self: std::pin::Pin<&mut Self>,
-        cx: &mut std::task::Context<'_>,
-    ) -> std::task::Poll<Option<Self::Item>> {
-        self.project().0.poll_next(cx)
-    }
-}
-
 /// The event emitted by a [`Context`] from an [`EventEmitter`].
 ///
 /// Events are documented on the C/FFI API in `deltachat.h` as `DC_EVENT_*` constants.  The