Gnome Shell Extension to remove the Accessibility (a11y) icon on
the top panel of GNOME Shell.  

Per-user Installation:

$ mkdir -p ~/.local/share/gnome-shell/extensions
$ cd ~/.local/share/gnome-shell/extensions
$ git clone https://github.com/ecoleman/noa11y-colemando.com.git

Global Installation:

# cd /usr/share/gnome-shell/extensions
# git clone https://github.com/ecoleman/noa11y-colemando.com.git

Press ALT+F2, type 'r' and hit enter.

Note, the name of the extension directory is important. gnome-shell
will not load the extension otherwise.

Use gsettings, gnome-tweak-tool, gconf-editor or the latest version of
gnome-shell-extension-tool to enable or disable the extension.

Credit goes to Finnbarr P. Murphy (fpmATfpmurphy.com)