stijn@stijn:~$ sudo apt-get purge kdelibs-bin
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  dkms kde-l10n-engb kde-l10n-es kde-l10n-zhcn lib32gcc1 libc6-i386
  libfakekey0 libtumbler-1-0 libunique-1.0-0 libwnck-common libwnck22 tumbler
  tumbler-common
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
  kde-runtime* kde-style-oxygen* kde-window-manager*
  kde-window-manager-common* kdelibs-bin* kdelibs5-plugins*
  kubuntu-debug-installer* qapt-batch* ubiquity-frontend-kde*
0 upgraded, 0 newly installed, 9 to remove and 0 not upgraded.
After this operation, 30,1 MB disk space will be freed.
Do you want to continue [Y/n]?