Removal of execution strategies (#14387)

* Start

* More work!

* Moar

* More changes

* More fixes

* More worrk

* More fixes

* More fixes to make it compile

* Adds `NoOffchainStorage`

* Pass the extensions

* Small basti making small progress

* Fix merge errors and remove `ExecutionContext`

* Move registration of `ReadRuntimeVersionExt` to `ExecutionExtension`

Instead of registering `ReadRuntimeVersionExt` in `sp-state-machine` it is moved to
`ExecutionExtension` which provides the default extensions.

* Fix compilation

* Register the global extensions inside runtime api instance

* Fixes

* Fix `generate_initial_session_keys` by passing the keystore extension

* Fix the grandpa tests

* Fix more tests

* Fix more tests

* Don't set any heap pages if there isn't an override

* Fix small fallout

* FMT

* Fix tests

* More tests

* Offchain worker custom extensions

* More fixes

* Make offchain tx pool creation reusable

Introduces an `OffchainTransactionPoolFactory` for creating offchain transactions pools that can be
registered in the runtime externalities context. This factory will be required for a later pr to
make the creation of offchain transaction pools easier.

* Fixes

* Fixes

* Set offchain transaction pool in BABE before using it in the runtime

* Add the `offchain_tx_pool` to Grandpa as well

* Fix the nodes

* Print some error when using the old warnings

* Fix merge issues

* Fix compilation

* Rename `babe_link`

* Rename to `offchain_tx_pool_factory`

* Cleanup

* FMT

* Fix benchmark name

* Fix `try-runtime`

* Remove `--execution` CLI args

* Make clippy happy

* Forward bls functions

* Fix docs

* Update UI tests

* Update client/api/src/execution_extensions.rs

Co-authored-by: Michal Kucharczyk <1728078+michalkucharczyk@users.noreply.github.com>

* Apply suggestions from code review

Co-authored-by: Koute <koute@users.noreply.github.com>

* Update client/cli/src/params/import_params.rs

Co-authored-by: Koute <koute@users.noreply.github.com>

* Update client/api/src/execution_extensions.rs

Co-authored-by: Koute <koute@users.noreply.github.com>

* Pass the offchain storage to the MMR RPC

* Update client/api/src/execution_extensions.rs

Co-authored-by: Sebastian Kunert <skunert49@gmail.com>

* Review comments

* Fixes

---------

Co-authored-by: Michal Kucharczyk <1728078+michalkucharczyk@users.noreply.github.com>
Co-authored-by: Koute <koute@users.noreply.github.com>
Co-authored-by: Sebastian Kunert <skunert49@gmail.com>

substrate/utils/frame/try-runtime/cli/src/lib.rs

@@ -858,7 +858,7 @@ pub(crate) fn state_machine_call<Block: BlockT, HostFns: HostFunctions>(
 	executor: &WasmExecutor<HostFns>,
 	method: &'static str,
 	data: &[u8],
-	extensions: Extensions,
+	mut extensions: Extensions,
 ) -> sc_cli::Result<(OverlayedChanges, Vec<u8>)> {
 	let mut changes = Default::default();
 	let encoded_results = StateMachine::new(
@@ -867,11 +867,11 @@ pub(crate) fn state_machine_call<Block: BlockT, HostFns: HostFunctions>(
 		executor,
 		method,
 		data,
-		extensions,
+		&mut extensions,
 		&sp_state_machine::backend::BackendRuntimeCode::new(&ext.backend).runtime_code()?,
 		CallContext::Offchain,
 	)
-	.execute(sp_state_machine::ExecutionStrategy::AlwaysWasm)
+	.execute()
 	.map_err(|e| format!("failed to execute '{}': {}", method, e))
 	.map_err::<sc_cli::Error, _>(Into::into)?;
 
@@ -887,7 +887,7 @@ pub(crate) fn state_machine_call_with_proof<Block: BlockT, HostFns: HostFunction
 	executor: &WasmExecutor<HostFns>,
 	method: &'static str,
 	data: &[u8],
-	extensions: Extensions,
+	mut extensions: Extensions,
 	maybe_export_proof: Option<PathBuf>,
 ) -> sc_cli::Result<(OverlayedChanges, Vec<u8>)> {
 	use parity_scale_codec::Encode;
@@ -906,11 +906,11 @@ pub(crate) fn state_machine_call_with_proof<Block: BlockT, HostFns: HostFunction
 		executor,
 		method,
 		data,
-		extensions,
+		&mut extensions,
 		&runtime_code,
 		CallContext::Offchain,
 	)
-	.execute(sp_state_machine::ExecutionStrategy::AlwaysWasm)
+	.execute()
 	.map_err(|e| format!("failed to execute {}: {}", method, e))
 	.map_err::<sc_cli::Error, _>(Into::into)?;