The simplest solution is:
npm uninstall packageName --save-dev
See upper level packages names in the your project:
npm list --depth=0
Output will be like:
app@0.1.0 /home/jackkobec/projects/myAppName
├── packageName@packageVersion
├── express@4.16.4
Copy package name and execute npm uninstall command. Example for express package:
npm uninstall express --save-dev
