Remove the ansi_term transitive dependency (#4822)

Only used during tests but this resolves #4742 by slimming the
dependency tree.

Cargo.lock

@@ -78,15 +78,6 @@ version = "0.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec8ad6edb4840b78c5c3d88de606b22252d552b55f3a4699fbb10fc070ec3049"
 
-[[package]]
-name = "ansi_term"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
-dependencies = [
- "winapi",
-]
-
 [[package]]
 name = "anyhow"
 version = "1.0.57"
@@ -2985,29 +2976,15 @@ dependencies = [
  "valuable",
 ]
 
-[[package]]
-name = "tracing-log"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78ddad33d2d10b1ed7eb9d1f518a5674713876e97e5bb9b7345a7984fbb4f922"
-dependencies = [
- "lazy_static",
- "log",
- "tracing-core",
-]
-
 [[package]]
 name = "tracing-subscriber"
 version = "0.3.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4bc28f93baff38037f64e6f43d34cfa1605f27a49c34e8a04c5e78b0babf2596"
 dependencies = [
- "ansi_term",
  "sharded-slab",
- "smallvec",
  "thread_local",
  "tracing-core",
- "tracing-log",
 ]
 
 [[package]]
@@ -3475,7 +3452,6 @@ dependencies = [
  "tempfile",
  "test-programs",
  "tokio",
- "tracing-subscriber",
  "wasmtime",
  "wasmtime-cache",
  "wasmtime-cli-flags",