Use interactive rebase:
git rebase -i master
An editor will open and you will have a list of commits like this:
pick b8f7c25 Fix 1
pick 273b0bb Fix 2
pick 6aaea1b Fix 3
Just delete the commit you want to skip. It will be omitted while rebasing your branch onto master.
P.S. If you cannot see the editor, please, refer to this question for solution: How can I set up an editor to work with Git on Windows?