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/consensus/common/Cargo.toml

@@ -29,7 +29,6 @@ sp-api = { version = "4.0.0-dev", path = "../../../primitives/api" }
 parking_lot = "0.11.1"
 serde = { version = "1.0", features = ["derive"] }
 prometheus-endpoint = { package = "substrate-prometheus-endpoint", path = "../../../utils/prometheus", version = "0.9.0" }
-wasm-timer = "0.2.5"
 async-trait = "0.1.42"
 
 [dev-dependencies]

substrate/client/consensus/common/src/import_queue.rs

@@ -265,7 +265,7 @@ pub(crate) async fn import_single_block_metered<
 		r => return Ok(r), // Any other successful result means that the block is already imported.
 	}
 
-	let started = wasm_timer::Instant::now();
+	let started = std::time::Instant::now();
 
 	let mut import_block = BlockImportParams::new(block_origin, header);
 	import_block.body = block.body;

substrate/client/consensus/common/src/import_queue/basic_queue.rs

@@ -289,7 +289,7 @@ impl<B: BlockT> BlockImportWorker<B> {
 		number: NumberFor<B>,
 		justification: Justification,
 	) {
-		let started = wasm_timer::Instant::now();
+		let started = std::time::Instant::now();
 
 		let success = match self.justification_import.as_mut() {
 			Some(justification_import) => justification_import