fix: remove legacy code related to old structure of android project
fix: remove legacy code related to old structure of android project

Rel to: https://github.com/NativeScript/nativescript-cli/issues/4504

NativeScript/nativescript-cli,NativeScript/nativescript-cli,NativeScript/nativescript-cli,NathanaelA/nativescript-cli,NathanaelA/nativescript-cli,NathanaelA/nativescript-cli,NathanaelA/nativescript-cli,NativeScript/nativescript-cli