Remove k9s from script

Remove k9s installation from the k3d dev script. k9s is not necessary and the install is hanging.
And the most important reason: Micah doesn't like it

docs/developer/scripts/k3d-dev.sh

@@ -451,8 +451,6 @@ else # default is public ip
 fi
 
 # add tools
-echo Installing k9s...
-ssh -i ~/.ssh/${KeyName}.pem -o StrictHostKeyChecking=no ubuntu@${PublicIP} 'curl -sS https://webinstall.dev/k9s | bash'
 echo Installing kubectl...
 ssh -i ~/.ssh/${KeyName}.pem -o StrictHostKeyChecking=no ubuntu@${PublicIP} 'curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"'
 ssh -i ~/.ssh/${KeyName}.pem -o StrictHostKeyChecking=no ubuntu@${PublicIP} 'sudo mv /home/ubuntu/kubectl /usr/local/bin/'