Remove redundant serial_test crate

Cargo.lock

@@ -4831,28 +4831,6 @@ dependencies = [
  "syn 1.0.73",
 ]
 
-[[package]]
-name = "serial_test"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0bccbcf40c8938196944a3da0e133e031a33f4d6b72db3bda3cc556e361905d"
-dependencies = [
- "lazy_static",
- "parking_lot 0.11.1",
- "serial_test_derive",
-]
-
-[[package]]
-name = "serial_test_derive"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2acd6defeddb41eb60bb468f8825d0cfd0c2a76bc03bfd235b6a1dc4f6a1ad5"
-dependencies = [
- "proc-macro2 1.0.27",
- "quote 1.0.9",
- "syn 1.0.73",
-]
-
 [[package]]
 name = "sha1"
 version = "0.6.0"
@@ -5920,7 +5898,6 @@ dependencies = [
  "lazy_static",
  "ron",
  "serde",
- "serial_test",
  "tracing",
  "walkdir 2.3.2",
 ]

common/assets/Cargo.toml

@@ -15,11 +15,10 @@ tracing = "0.1"
 
 # asset tweak
 serde = {version = "1.0", features = ["derive"], optional = true}
-serial_test = {version = "0.5", optional = true}
 
 [dev-dependencies]
 walkdir = "2.3.2"
 
 [features]
 hot-reloading = ["assets_manager/hot-reloading"]
-asset_tweak = ["serial_test", "serde", "hot-reloading"]
+asset_tweak = ["serde", "hot-reloading"]