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/future.rs

@@ -24,7 +24,7 @@ use std::{
 
 use sp_core::hexdisplay::HexDisplay;
 use sp_runtime::transaction_validity::TransactionTag as Tag;
-use wasm_timer::Instant;
+use std::time::Instant;
 
 use super::base_pool::Transaction;
 

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

@@ -27,7 +27,7 @@ use sp_runtime::{
 		TransactionSource, TransactionTag as Tag, TransactionValidity, TransactionValidityError,
 	},
 };
-use wasm_timer::Instant;
+use std::time::Instant;
 
 use super::{
 	base_pool as base,
@@ -454,9 +454,11 @@ mod tests {
 		traits::Hash,
 		transaction_validity::{InvalidTransaction, TransactionSource, ValidTransaction},
 	};
-	use std::collections::{HashMap, HashSet};
+	use std::{
+		collections::{HashMap, HashSet},
+		time::Instant,
+	};
 	use substrate_test_runtime::{AccountId, Block, Extrinsic, Hashing, Transfer, H256};
-	use wasm_timer::Instant;
 
 	const INVALID_NONCE: u64 = 254;
 	const SOURCE: TransactionSource = TransactionSource::External;

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;
 

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

@@ -32,7 +32,7 @@ use sp_runtime::{
 	traits::{self, SaturatedConversion},
 	transaction_validity::{TransactionSource, TransactionTag as Tag, ValidTransaction},
 };
-use wasm_timer::Instant;
+use std::time::Instant;
 
 use super::{
 	base_pool::{self as base, PruneStatus},