Remove unused serde_qs crate

Cargo.lock

@@ -960,7 +960,6 @@ name = "error-chain"
 version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "backtrace 0.3.55 (registry+https://github.com/rust-lang/crates.io-index)",
  "version_check 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2598,7 +2597,6 @@ dependencies = [
  "scheduled-thread-pool 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.61 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_qs 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "shrinkwraprs 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "validator 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "validator_derive 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3428,17 +3426,6 @@ dependencies = [
  "serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "serde_qs"
-version = "0.5.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "data-encoding 2.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "error-chain 0.12.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "serde_urlencoded"
 version = "0.5.5"
@@ -5000,7 +4987,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)" = "06c64263859d87aa2eb554587e2d23183398d617427327cf2b3d0ed8c69e4800"
 "checksum serde_derive 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)" = "c84d3526699cd55261af4b941e4e725444df67aa4f9e6a3564f18030d12672df"
 "checksum serde_json 1.0.61 (registry+https://github.com/rust-lang/crates.io-index)" = "4fceb2595057b6891a4ee808f70054bd2d12f0e97f1cbb78689b59f676df325a"
-"checksum serde_qs 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d43eef44996bbe16e99ac720e1577eefa16f7b76b5172165c98ced20ae9903e1"
 "checksum serde_urlencoded 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "642dd69105886af2efd227f75a520ec9b44a820d65bc133a9131f7d229fd165a"
 "checksum serde_urlencoded 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "edfa57a7f8d9c1d260a549e7224100f6c43d43f9103e06dd8b4095a9b2b43ce9"
 "checksum sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"

Cargo.toml

@@ -26,7 +26,6 @@ rpassword = "4.0"
 scheduled-thread-pool = "0.2.2"
 serde = "1.0"
 serde_json = "1.0"
-serde_qs = "0.5"
 shrinkwraprs = "0.2.1"
 validator = "0.8"
 validator_derive = "0.8"