remove actix-threadpool re-export from actix-rt

actix-rt/Cargo.toml

@@ -15,13 +15,8 @@ edition = "2018"
 name = "actix_rt"
 path = "src/lib.rs"
 
-[features]
-default = ["blocking"]
-blocking = ["actix-threadpool"]
-
 [dependencies]
 actix-macros = "0.1.0"
-actix-threadpool = { version = "0.3", optional = true }
 copyless = "0.1.4"
 futures-channel = "0.3.4"
 futures-util = { version = "0.3.4", default-features = false, features = ["alloc"] }

actix-rt/src/arbiter.rs

@@ -134,10 +134,7 @@ impl Arbiter {
                     .unbounded_send(SystemCommand::RegisterArbiter(id, arb));
 
                 // run loop
-                let _ = match rt.block_on(stop_rx) {
-                    Ok(code) => code,
-                    Err(_) => 1,
-                };
+                let _ = rt.block_on(stop_rx).unwrap_or(1);
 
                 // unregister arbiter
                 let _ = System::current()

actix-rt/src/lib.rs

@@ -15,10 +15,6 @@ pub use self::builder::{Builder, SystemRunner};
 pub use self::runtime::Runtime;
 pub use self::system::System;
 
-#[doc(hidden)]
-#[cfg(feature = "blocking")]
-pub use actix_threadpool as blocking;
-
 /// Spawns a future on the current arbiter.
 ///
 /// # Panics