Remove unused workspace entries and simplify Rust code (#61379)

## What changed

- Remove the `codex-v8-poc`, `sentry`, and `syntect` workspace dependency entries and the `codex-v8-poc` entry from the `cargo-machete` ignore list.
- Remove unnecessary clones from MCP configuration and web search serialization tests.
- Simplify the final protected-metadata check in `WritableRoot::is_path_writable` to return the negated predicate directly.

GitOrigin-RevId: 80c1dd3106fc24c0767696936c719bb1fbb47227

codex-rs/Cargo.toml

@@ -340,7 +340,6 @@ codex-utils-stream-parser = { path = "utils/stream-parser" }
 codex-utils-string = { path = "utils/string" }
 codex-utils-template = { path = "utils/template" }
 codex-user-verification = { path = "user-verification" }
-codex-v8-poc = { path = "v8-poc" }
 codex-workload-identity = { path = "workload-identity" }
 codex-windows-sandbox = { path = "windows-sandbox-rs" }
 codex-windows-sandbox-test-support = { path = "windows-sandbox-rs/tests/support" }
@@ -488,7 +487,6 @@ rustls-pki-types = "1.14.0"
 schemars = "0.8.22"
 seccompiler = "0.5.0"
 semver = "1.0"
-sentry = "0.46.0"
 serde = { version = "1", features = ["rc"] }
 serde_ignored = "0.1.14"
 serde_json = "1"
@@ -529,7 +527,6 @@ starlark = { version = "0.14.2", default-features = false }
 strum = "0.27.2"
 strum_macros = "0.28.0"
 supports-color = "3.0.2"
-syntect = "5"
 sys-locale = "0.3.2"
 system-configuration = "0.7"
 tar = { version = "=0.4.45", default-features = false }
@@ -646,7 +643,6 @@ unwrap_used = "deny"
 ignored = [
     "icu_provider",
     "openssl-sys",
-    "codex-v8-poc",
 ]
 
 [profile.dev]

codex-rs/config/src/mcp_types_tests.rs

@@ -539,7 +539,7 @@ fn serialize_round_trips_server_config_with_omitted_tool_exposure_surfaces() {
         let config = format!("command = \"echo\"\nomit_tools_from = [{serialized_surfaces}]\n");
         let cfg: McpServerConfig =
             toml::from_str(&config).expect("should deserialize omitted MCP exposure surfaces");
-        assert_eq!(cfg.omit_tools_from, Some(omitted_surfaces.clone()));
+        assert_eq!(cfg.omit_tools_from, Some(omitted_surfaces));
 
         let serialized = toml::to_string(&cfg).expect("should serialize MCP config");
         assert!(serialized.contains(&format!("omit_tools_from = [{serialized_surfaces}]")));

codex-rs/protocol/src/models.rs

@@ -4141,9 +4141,9 @@ mod tests {
             let parsed: ResponseItem = serde_json::from_str(json_literal)?;
             let expected = ResponseItem::WebSearchCall {
                 encrypted_content: None,
-                id: expected_id.clone(),
-                status: expected_status.clone(),
-                action: expected_action.clone(),
+                id: expected_id,
+                status: expected_status,
+                action: expected_action,
                 internal_chat_message_metadata_passthrough: None,
             };
             assert_eq!(parsed, expected);

codex-rs/protocol/src/protocol.rs

@@ -1353,11 +1353,7 @@ impl WritableRoot {
             }
         }
 
-        if self.path_contains_protected_metadata_name(path) {
-            return false;
-        }
-
-        true
+        !self.path_contains_protected_metadata_name(path)
     }
 
     fn path_contains_protected_metadata_name(&self, path: &Path) -> bool {