I need to completely remove the indicator, no flags, no abbr. nothing! I was able to do it in 10.04 using a gconf key that has no scheme and I heard that a proper scheme will be available in 10.10 but I can't find anything.
Press Alt+F2 and enter
Now navigate to apps-->gnome_settings_daemon-->plugins-->keyboard and uncheck active
By the way, if you're removing it because of the big ugly (redundant) image in the 10.10 keyboard indicator, I've got a solution to that. I created a set of SVG flag images. If you install them and activate "show flags" in your g-conf editor then the text and ugly image both disappear. In their place you just have the one (much smaller) input language flag. I've posted the SVG's and full instructions here: http://gnome-look.org/content/show.php/Language+Flags+for+Faenza+and+Elementary?content=133726
This is a known bug
the key I was talking about is:
For pre-maverick only.
Thank you all for the input.
I have completely same task, and i have just solve it for myself by using icons with the sizes of 1px * 1px, this is not completely removal, but it's best solution i could found.
2)Untar (expand) the downloaded file into the folder ~/.icons/flags. If there is no "flags" sub-folder just create it. Then you need to enable the display of flags for input languages in gconf:
3) Open gconf-editor (in Ubuntu type ALT-F2 to open the "run application" dialogue and then type "gconf-editor" without the quotes and press enter).
4) Navigate the folder tree to Desktop > Gnome > Peripherals > Keyboard > Indicator
5) Activate the check-box for "showFlags"
6) Find icons for your languages in folder ~/.icons/flags, for me it was us.svg and ru.svg. Open it in image editor like Inkscape, and resize to 1*1 px (in inkscape Shift+Ctrl+D), save it.