Git question

git init
echo init >> demo_file
git add .
git commit -m "Init"
echo 1 >> demo_file
git add .
git commit -m "1"
echo 2 >> demo_file
git add .
git commit -m "2"
echo 3 >> demo_file
git add .
git commit -m "3"
git log --oneline
cat demo_file
git rebase -i HEAD~3
# I tried to delete only commit 1