Update CONTRIBUTING.md

Author: ThisIsKirsch

CONTRIBUTING.md

@@ -12,8 +12,6 @@ Please note that this project is released with a [Contributor Code of Conduct][c
 ## Submitting a pull request
 
 1. [Fork][fork] and clone the repository
-2. Configure and install the dependencies: `script/bootstrap`
-3. Make sure the tests pass on your machine: `rake`
 4. Create a new branch: `git checkout -b my-branch-name`
 5. Make your change, add tests, and make sure the tests still pass
 6. Push to your fork and [submit a pull request][pr]