Sorry to see you go. Below are a few methods you can use to uninstall Kami from your browser depending on the version you are using.
To remove Kami from your installed apps you will need to go to your Google Drive and select the Gear as shown below:
Then select the Settings option and Manage Apps. From here you can scroll down to Kami, and remove it from your permissions list:
By going into the Google Chrome Settings and then to the Extensions tab you will be able to remove Kami by selecting the bin/trash icon located on the right: