We can remove these colors from the UI because these colors are equal to
cyan and magenta, and will be useful just in the import/exports filters. If the
user still wants to use aqua and fuchsia, they can type them in the Math editor.

Change-Id: Ia93d458e07b218aa007ec43bd490f774e5b4ea5b
Reviewed-on: https://gerrit.libreoffice.org/12467Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Tested-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>