How to remove some files from commit checklist Android Studio?

First Things first:

You can add a .gitignore file to your repository, via terminal, by the commands below:

1. In Terminal, navigate to the location of your Git repository.
2. Enter touch .gitignore to create a .gitignore file.

Second, you should pay attention that, If you already have a file checked in and you want to ignore it, Git will not ignore the file if you add a rule later. In those cases, you must untrack the file first, by running the following command in your terminal:

$ git rm --cached FILENAME

for more information on this follow https://help.github.com/en/articles/ignoring-files

you need to add those files in your ignored files under version control area in your android studio. For navigation go to

Open File -> Settings -> Version Control -> Ignored Files. 

Add files those you don't want to commit or include. Another way of doing it like the other answer suggested to do it with .gradle tools.