Drop NEXT_CHANGELOG entry (NO_CHANGELOG=true)

Author: simonfaltum

NEXT_CHANGELOG.md

@@ -4,8 +4,6 @@
 
 ### New Features and Improvements
 
-* Detect VS Code agent-initiated terminal commands via the `VSCODE_AGENT` environment variable (VS Code 1.121+). The User-Agent header now reports `agent/vscode-agent` when set. The previous `COPILOT_MODEL` heuristic (which reported `agent/copilot-vscode`) has been removed; it produced false positives for Copilot CLI BYOK users and never reliably identified VS Code.
-
 ### Breaking Changes
 
 ### Bug Fixes