Don't need ssh port in bashrc

src/freedombone-image-customise

@@ -339,7 +339,6 @@ fi
 EOF
 
     { echo "MY_USERNAME=${MY_USERNAME}";
-      echo "SSH_PORT=${SSH_PORT}";
       echo '# initial setup of the system';
       echo 'if [ -f ~/.initial_setup ]; then';
       echo '    if [ -f ~/login.txt ]; then';