fix: remove forced branching from bash guidance (MiniMax-AI#358)

Co-authored-by: minimax <adhere@minimaxi.com>

Author: AdhereZ

packages/agent-tools/src/desktop/builtin-defs.ts

@@ -118,7 +118,7 @@ export const LocalBashToolDef = {
     '# Git',
     '- Interactive flags (`-i`, e.g. `git rebase -i`, `git add -i`) are not supported in this environment.',
     '- Use the `gh` CLI for GitHub operations (PRs, issues, API).',
-    '- Commit or push only when the user asks. If on the default branch, branch first.',
+    '- Commit or push only when the user asks.',
   ].join('\n'),
   schema: Type.Object({
     command: Type.String({