Remove node-runtime dependency from node-rpc. (#8539)

* Remove node-runtime dependency from node-rpc.

The node-runtime dependency is not used and increases build times.

* update Cargo.lock

substrate/Cargo.lock

@@ -4244,7 +4244,6 @@ version = "2.0.0"
 dependencies = [
  "jsonrpc-core",
  "node-primitives",
- "node-runtime",
  "pallet-contracts-rpc",
  "pallet-mmr-rpc",
  "pallet-transaction-payment-rpc",

substrate/bin/node/rpc/Cargo.toml

@@ -13,7 +13,6 @@ targets = ["x86_64-unknown-linux-gnu"]
 [dependencies]
 jsonrpc-core = "15.1.0"
 node-primitives = { version = "2.0.0", path = "../primitives" }
-node-runtime = { version = "2.0.0", path = "../runtime" }
 pallet-contracts-rpc = { version = "3.0.0", path = "../../../frame/contracts/rpc/" }
 pallet-mmr-rpc = { version = "3.0.0", path = "../../../frame/merkle-mountain-range/rpc/" }
 pallet-transaction-payment-rpc = { version = "3.0.0", path = "../../../frame/transaction-payment/rpc/" }