Please tell me why appfour team remove AIDE phonegap condova, AIDE , AIDE premium key etc? 
AIDE phonegap remove from Google play store
They did not, Google removes Apps that are not updated.
So a developer has to update the app and increase the target api from time to time for security purposes or support for new android version.
AppFour could not update AIDE. Why? On Android 11+ is forbidden to run binaries on system level - only in the private app folder under /data/data.
Probably to much work for them. But you can use other mobile IDEs like androidide.com or CodeAssist