*/Cargo.toml: Remove unused dependencies (#7590)

* */Cargo.toml: Remove unused dependencies

Using cargo-udeps to detect unused dependencies.

* client/network/Cargo: Revert dependency removal

* Cargo.lock: Update

substrate/Cargo.lock

@@ -6377,7 +6377,6 @@ name = "sc-authority-discovery"
 version = "0.8.0"
 dependencies = [
  "async-trait",
- "bytes 0.5.6",
  "derive_more",
  "either",
  "futures 0.3.8",
@@ -6390,7 +6389,6 @@ dependencies = [
  "quickcheck",
  "rand 0.7.3",
  "sc-client-api",
- "sc-keystore",
  "sc-network",
  "sc-peerset",
  "serde_json",
@@ -6541,7 +6539,6 @@ dependencies = [
  "fnv",
  "futures 0.3.8",
  "hash-db",
- "hex-literal",
  "kvdb",
  "kvdb-memorydb",
  "lazy_static",
@@ -6549,7 +6546,6 @@ dependencies = [
  "parity-scale-codec",
  "parking_lot 0.10.2",
  "sc-executor",
- "sc-telemetry",
  "sp-api",
  "sp-blockchain",
  "sp-consensus",
@@ -6557,7 +6553,6 @@ dependencies = [
  "sp-database",
  "sp-externalities",
  "sp-inherents",
- "sp-keyring",
  "sp-keystore",
  "sp-runtime",
  "sp-state-machine",
@@ -8110,7 +8105,6 @@ dependencies = [
  "lru 0.6.1",
  "parity-scale-codec",
  "parking_lot 0.10.2",
- "sp-block-builder",
  "sp-consensus",
  "sp-database",
  "sp-runtime",
@@ -8418,7 +8412,6 @@ name = "sp-panic-handler"
 version = "2.0.0"
 dependencies = [
  "backtrace",
- "log",
 ]
 
 [[package]]
@@ -8447,7 +8440,6 @@ dependencies = [
  "sp-application-crypto",
  "sp-arithmetic",
  "sp-core",
- "sp-inherents",
  "sp-io",
  "sp-state-machine",
  "sp-std",