Uninstall or reconfigure ionic deploy

I installed ionic appflow and configured ionic deploy and it worked all fine, except i want to change the update method now. I found that there is not method to change it once after installing and configuring it.

i uninstalled node_modules and re installed again, i removed plugins folder, platforms and installed it again. I even uninstalled ionic, ionic native and reinstalled it globally but every time i run ionic deploy add it says
“Error: Appflow deploy plugin is already installed”.