Sometimes it\'s useful to rebuild an entire site and force bower to reinstall new versions of all the packages in bower.json.
However, there doesn\'t seem to be any way
Uninstalling Packages
To remove a package you can use the uninstall command followed by the name of the package you wish to remove.
bower uninstall
It’s possible to remove multiple packages at once by listing the package names.
bower uninstall jquery modernizr sass-bootstrap