1) I can see that RxJava dependency is included in gradle compile 'io.reactivex:rxjava:1.1.0' but only referred in the 3 classes in io.reactivex package which is also then not used. Removing unused code is always better. Also I would highly recommend to use it when needed but RxJava2 instead of RxJava1 which is already obsolete.
2) Picasso dependency is also unused if I am not wrong.
1) I can see that RxJava dependency is included in gradle
compile 'io.reactivex:rxjava:1.1.0'but only referred in the 3 classes inio.reactivexpackage which is also then not used. Removing unused code is always better. Also I would highly recommend to use it when needed but RxJava2 instead of RxJava1 which is already obsolete.2) Picasso dependency is also unused if I am not wrong.