chore(features) rm Feature::ApplyPatchFreeform (#22711)

## Summary
Removes the feature since this is effectively on by default in all cases
where we should use it, or can be configured via models.json.

## Testing
- [x] unit tests pass

codex-rs/tools/src/tool_config.rs

@@ -175,7 +175,6 @@ impl ToolsConfig {
             session_source,
             ..
         } = params;
-        let include_apply_patch_tool = features.enabled(Feature::ApplyPatchFreeform);
         let include_code_mode = features.enabled(Feature::CodeMode);
         let include_code_mode_only = include_code_mode && features.enabled(Feature::CodeModeOnly);
         let include_goal_tools = features.enabled(Feature::Goals);
@@ -225,10 +224,7 @@ impl ToolsConfig {
             model_shell_type
         };
 
-        let apply_patch_tool_type = model_info
-            .apply_patch_tool_type
-            .clone()
-            .or_else(|| include_apply_patch_tool.then_some(ApplyPatchToolType::Freeform));
+        let apply_patch_tool_type = model_info.apply_patch_tool_type.clone();
 
         let agent_jobs_worker_tools = include_agent_jobs
             && matches!(