Remove unused node template deps (#6748)

* Remove unused node template deps

Backport changes made by @c410-f3r
https://github.com/substrate-developer-hub/substrate-node-template/pull/66

* Enhancements to README

* Revert change to serde per @thiolliere

substrate/Cargo.lock

@@ -3826,10 +3826,7 @@ dependencies = [
 name = "node-template"
 version = "2.0.0-rc5"
 dependencies = [
- "futures 0.3.5",
- "log",
  "node-template-runtime",
- "parking_lot 0.10.2",
  "sc-basic-authorship",
  "sc-cli",
  "sc-client-api",
@@ -3837,7 +3834,6 @@ dependencies = [
  "sc-consensus-aura",
  "sc-executor",
  "sc-finality-grandpa",
- "sc-network",
  "sc-service",
  "sc-transaction-pool",
  "sp-consensus",
@@ -3873,7 +3869,6 @@ dependencies = [
  "sp-consensus-aura",
  "sp-core",
  "sp-inherents",
- "sp-io",
  "sp-offchain",
  "sp-runtime",
  "sp-session",

substrate/bin/node-template/README.md

@@ -108,7 +108,8 @@ Substrate-based blockchain nodes expose a number of capabilities:
 -   Consensus: Blockchains must have a way to come to
     [consensus](https://substrate.dev/docs/en/knowledgebase/advanced/consensus) on the state of the
     network. Substrate makes it possible to supply custom consensus engines and also ships with
-    several consensus mechanisms that have been built on top of Web3 Foundation research.
+    several consensus mechanisms that have been built on top of
+    [Web3 Foundation research](https://research.web3.foundation/en/latest/polkadot/NPoS/index.html).
 -   RPC Server: A remote procedure call (RPC) server is used to interact with Substrate nodes.
 
 There are several files in the `node` directory - take special note of the following:
@@ -140,12 +141,17 @@ capabilities and configuration parameters that it exposes:
 
 ### Runtime
 
-The Substrate project in this repository uses the
-[FRAME](https://substrate.dev/docs/en/knowledgebase/runtime/frame) framework to construct a
+In Substrate, the terms
+"[runtime](https://substrate.dev/docs/en/knowledgebase/getting-started/glossary#runtime)" and
+"[state transition function](https://substrate.dev/docs/en/knowledgebase/getting-started/glossary#stf-state-transition-function)"
+are analogous - they refer to the core logic of the blockchain that is responsible for validating
+blocks and executing the state changes they define. The Substrate project in this repository uses
+the [FRAME](https://substrate.dev/docs/en/knowledgebase/runtime/frame) framework to construct a
 blockchain runtime. FRAME allows runtime developers to declare domain-specific logic in modules
 called "pallets". At the heart of FRAME is a helpful
 [macro language](https://substrate.dev/docs/en/knowledgebase/runtime/macros) that makes it easy to
-create pallets and flexibly compose them to create blockchains that can address a variety of needs.
+create pallets and flexibly compose them to create blockchains that can address
+[a variety of needs](https://www.substrate.io/substrate-users/).
 
 Review the [FRAME runtime implementation](./runtime/src/lib.rs) included in this template and note
 the following:

substrate/bin/node-template/node/Cargo.toml

@@ -16,10 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 name = "node-template"
 
 [dependencies]
-futures = "0.3.4"
-log = "0.4.8"
 structopt = "0.3.8"
-parking_lot = "0.10.0"
 
 sc-cli = { version = "0.8.0-rc5", path = "../../../client/cli", features = ["wasmtime"] }
 sp-core = { version = "2.0.0-rc5", path = "../../../primitives/core" }
@@ -28,7 +25,6 @@ sc-service = { version = "0.8.0-rc5", path = "../../../client/service", features
 sp-inherents = { version = "2.0.0-rc5", path = "../../../primitives/inherents" }
 sc-transaction-pool = { version = "2.0.0-rc5", path = "../../../client/transaction-pool" }
 sp-transaction-pool = { version = "2.0.0-rc5", path = "../../../primitives/transaction-pool" }
-sc-network = { version = "0.8.0-rc5", path = "../../../client/network" }
 sc-consensus-aura = { version = "0.8.0-rc5", path = "../../../client/consensus/aura" }
 sp-consensus-aura = { version = "0.8.0-rc5", path = "../../../primitives/consensus/aura" }
 sp-consensus = { version = "0.8.0-rc5", path = "../../../primitives/consensus/common" }

substrate/bin/node-template/runtime/Cargo.toml

@@ -29,7 +29,6 @@ sp-block-builder = { path = "../../../primitives/block-builder", default-feature
 sp-consensus-aura = { version = "0.8.0-rc5", default-features = false, path = "../../../primitives/consensus/aura" }
 sp-core = { version = "2.0.0-rc5", default-features = false, path = "../../../primitives/core" }
 sp-inherents = { path = "../../../primitives/inherents", default-features = false, version = "2.0.0-rc5"}
-sp-io = { version = "2.0.0-rc5", default-features = false, path = "../../../primitives/io" }
 sp-offchain = { version = "2.0.0-rc5", default-features = false, path = "../../../primitives/offchain" }
 sp-runtime = { version = "2.0.0-rc5", default-features = false, path = "../../../primitives/runtime" }
 sp-session = { version = "2.0.0-rc5", default-features = false, path = "../../../primitives/session" }
@@ -58,7 +57,6 @@ std = [
 	"sp-consensus-aura/std",
 	"sp-core/std",
 	"sp-inherents/std",
-	"sp-io/std",
 	"sp-offchain/std",
 	"sp-runtime/std",
 	"sp-session/std",