To uninstall minpack-dev just follow these instructions.
/ubuntu/trusty/universe///install/index.html nonlinear equations and nonlinear least squares static library Ubuntu 14.04 LTS universe/devel 19961126+dfsg1-2ubuntu1
sudo apt-get remove minpack-dev
Which will remove just the minpack-dev package itself.
sudo apt-get remove --auto-remove minpack-dev
This will remove the minpack-dev package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for minpack-dev then this will work.
sudo apt-get purge minpack-dev
Or similarly, like this minpack-dev
sudo apt-get purge --auto-remove minpack-dev
|Description||nonlinear equations and nonlinear least squares static library|