quick updates

default_aliases

@@ -47,7 +47,6 @@ alias py="python3"
 alias py2="python2"
 alias py3="python3"
 alias s="sudo -E"
-alias ss="sudo su"
 
 function check-env() {
     if [ -n "$PIPENV_ACTIVE" ]; then

system_aliases

@@ -36,7 +36,6 @@ alias py="python3"
 alias py2="python2"
 alias py3="python3"
 alias s="sudo -E"
-alias ss="sudo su"
 
 alias internetSpeedTest="wget -O /dev/null http://speedtest.wdc01.softlayer.com/downloads/test10.zip"
 alias weather="curl http://wttr.in/hk"