As root or sudo, open a terminal and navigate to the folder where Centrify was first installed (typically /usr/share/centrifydc/bin) . On most Centrify DirectControl-managed systems, you can remove the Centrify DirectControl Agent and related files by running the uninstall.sh script.
as follows:

/bin/sh /usr/share/centrifydc/bin/uninstall.sh

For example:

Do you want to uninstall the CentrifyDC-5.8.1 package from this computer? (Q|Y|N) [N]:N

References

KB-1780: How to uninstall Centrify agent on Unix/Linux platforms?