Looks like a great opportunity to switch to a Real Editor! :P. Emacs can do this. It also has a bar at the bottom, and can have some at the top, but all can be disabled. You will most likely just see the bottom one in the default setup:

To disable it, add this line to your ~/.emacs
file and restart emacs:
(setq mode-line-format nil)
Or, to disable it only for this session, press Esc+: and then write (setq mode-line-format nil)
and press enter. The result looks like:

If you also have other bars active by default, adding these lines to ~/.emacs
commands will get rid of them:
To disable the menu bar, add this line to ~/.emacs
:
(menu-bar-mode -1)
To disable the scrollbar, this one:
(toggle-scroll-bar -1)
To disable the toolbar, this one:
(tool-bar-mode -1)
You can install emacs
with
sudo apt install emacs
Or, to install it for command line only, without GUI support:
sudo apt install emacs-nox
No matter which of the two you install, if you are running without a GUI (e.g. in a tty), running emacs
will open the command line version and, if you are running with a GUI, running emacs -nw
will open the command line mode in a terminal.
Answer adapted from https://stackoverflow.com/a/44188258/1081936 and http://kb.mit.edu/confluence/display/istcontrib/Disabling+the+Emacs+menubar%2C+toolbar%2C+or+scrollbar.