Removed experimental "command risk assessment" feature (#7799)

This experimental feature received lukewarm reception during internal
testing. Removing from the code base.

codex-rs/Cargo.lock

@@ -238,48 +238,6 @@ dependencies = [
  "term",
 ]
 
-[[package]]
-name = "askama"
-version = "0.14.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f75363874b771be265f4ffe307ca705ef6f3baa19011c149da8674a87f1b75c4"
-dependencies = [
- "askama_derive",
- "itoa",
- "percent-encoding",
- "serde",
- "serde_json",
-]
-
-[[package]]
-name = "askama_derive"
-version = "0.14.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "129397200fe83088e8a68407a8e2b1f826cf0086b21ccdb866a722c8bcd3a94f"
-dependencies = [
- "askama_parser",
- "basic-toml",
- "memchr",
- "proc-macro2",
- "quote",
- "rustc-hash",
- "serde",
- "serde_derive",
- "syn 2.0.104",
-]
-
-[[package]]
-name = "askama_parser"
-version = "0.14.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6ab5630b3d5eaf232620167977f95eb51f3432fc76852328774afbd242d4358"
-dependencies = [
- "memchr",
- "serde",
- "serde_derive",
- "winnow",
-]
-
 [[package]]
 name = "assert-json-diff"
 version = "2.0.2"
@@ -557,15 +515,6 @@ version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
-[[package]]
-name = "basic-toml"
-version = "0.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba62675e8242a4c4e806d12f11d136e626e6c8361d6b829310732241652a178a"
-dependencies = [
- "serde",
-]
-
 [[package]]
 name = "beef"
 version = "0.5.2"
@@ -1137,7 +1086,6 @@ name = "codex-core"
 version = "0.0.0"
 dependencies = [
  "anyhow",
- "askama",
  "assert_cmd",
  "assert_matches",
  "async-channel",