git-clean - Remove untracked files from the working tree

Syntax

git clean [-d] [-f] [-i] [-n] [-q] [-e <pattern>] [-x | -X] [--] [<pathspec>]

Example 

Use the following command to clean all untracked files and uncommitted code.

Note: This will clean your working tree and remove all new changes in your current branch.

git clean -d -f -f