[scripts] fix build script err when removing broken symlinks
[scripts] fix build script err when removing broken symlinks

cornell-brg/pydgin,cornell-brg/pydgin,moreati/pydgin,futurecore/pydgin,moreati/pydgin,futurecore/pydgin,moreati/pydgin,futurecore/pydgin,cornell-brg/pydgin,futurecore/pydgin,moreati/pydgin,cornell-brg/pydgin