Fix `npm run clean`
Fix `npm run clean`

Otherwise it resulted in a `rm: cannot remove ‘*.js’: No such file or directory` in a fresh clone.

guumaster/1-liners,lambdahands/1-liners,kshirish/1-liners,tristaaan/1-liners,davidchase/1-liners,1-liners/1-liners,QuinntyneBrown/1-liners