If you already have AWS Command Line Interface (AWS CLI 2) and want to uninstall it from your system, then you will find all the steps to remove it.
Find symbolic link for aws program. This will give you the --bin-dir
abhijit@awsjunkie:~$ which aws
/usr/local/bin/aws
Find installation directory (--install-dir=/usr/local/aws-cli/) and symbolic links for aws and aws_completer.
abhijit@awsjunkie:~$ ls -l /usr/local/bin/
total 15864
drwxr-xr-x 2 root root 4096 May 12 21:18 __pycache__
lrwxrwxrwx 1 root root 37 Jun 27 14:23 aws -> /usr/local/aws-cli/v2/current/bin/aws
lrwxrwxrwx 1 root root 47 Jun 27 14:23 aws_completer -> /usr/local/aws-cli/v2/current/bin/aws_completer
-rwxr-xr-x 1 root root 1695 May 12 21:18 jp.py
-rwxr-xr-x 1 root root 16236544 Jun 29 22:39 oh-my-posh
lrwxrwxrwx 1 root root 38 Jun 30 19:46 sam -> /usr/local/aws-sam-cli/current/bin/sam
Delete symbolic links for aws and aws_completer.
abhijit@awsjunkie:~$ sudo rm /usr/local/bin/aws
abhijit@awsjunkie:~$ sudo rm /usr/local/bin/aws_completer
Remove installation directory (e.g. /usr/local/aws-cli/).
abhijit@awsjunkie:~$ sudo rm -rf /usr/local/aws-cli
Remove .aws directory that stores AWS SDK, CLI configuration and credential files .
abhijit@awsjunkie:~$ sudo rm -rf ~/.aws/
Verify
abhijit@awsjunkie:~$ aws --version
Command 'aws' not found, but can be installed with:
sudo apt install awscli