Remove substrate-in-the-browser (#9541)

* Comment out browser stuff

* Remove browser stuff

* Remove more wasm transport code

* Remove ExtTransport and rework how telemetry initialises.

* Change (most) wasm-timer using code to use std::time

* Rename CI-job

* Aura does not compile for wasm

* Remove testing in the browser on CI

* Update README

* Leave `StreamSink` be

* fmt

substrate/client/transaction-pool/src/graph/rotator.rs

@@ -22,8 +22,11 @@
 //! Discarded extrinsics are banned so that they don't get re-imported again.
 
 use parking_lot::RwLock;
-use std::{collections::HashMap, hash, iter, time::Duration};
-use wasm_timer::Instant;
+use std::{
+	collections::HashMap,
+	hash, iter,
+	time::{Duration, Instant},
+};
 
 use super::base_pool::Transaction;