If you installed the Liberty profile by using the self-extracting archive, then to remove an interim fix you must manually remove files, and restore files, from the /wlp folder.
If you used IBM® Installation Manager to apply an interim fix, you can use Installation Manager to remove the interim fix.
The current set of fixes installed on a Liberty profile can be found in the /lib/fixes directory.
Each interim fix is provided with a readme.txt file, which contains backup and restore instructions specific to the fix content, in a section titled Directions to apply fix. If the readme.txt file does not include any requirement to back up files, you can extract the fix and then restart the server at any time with the --clean parameter as a launch option.You can reapply the fix by following the instructions in Applying an interim fix to a Liberty profile archive installation.