build: remove Windows dependency installation script (#27)

## Summary by Sourcery

从代码库和 CI 工作流中移除特定于 Windows 的依赖安装脚本。

构建（Build）：
- 停止在安装相关的 GitHub Actions 工作流中复制 Windows 依赖安装批处理脚本。

杂务（Chores）：
- 从 `tools` 目录中删除 Windows 依赖安装批处理脚本文件。

<details>
<summary>Original summary in English</summary>

## Summary by Sourcery

Remove Windows-specific dependency installation script from the
repository and CI workflow.

Build:
- Stop copying the Windows dependency installation batch script in the
install GitHub Actions workflow.

Chores:
- Delete the Windows dependency installation batch script file from the
tools directory.

</details>

Author: Natsuu

.github/workflows/install.yml

@@ -124,10 +124,6 @@ jobs:
             else
               echo "MFA directory not found, skipping copy."
             fi
-            if [[ "${{ matrix.os }}" == "win" ]]; then
-              mkdir -p install
-              cp -v "tools/DependencySetup_依赖库安装.bat" install/
-            fi
           else
             echo "Skipping copy MFA for Android."
           fi