Remove unused OptionMenuModel from components/translate

It was linked into some jumbo build experiments where it triggered
link errors.

If you include an object file, for instance options_menu_model.o, in
an archive, for instance libtranslate.a, and nothing references that
object file, then the linker won't care if options_menu_model.o is
referencing all kinds of undefined symbols. It's a feature or quirk
depending on who you asks.

With jumbo compilation this options_menu_model.o would be combined
with 7+ other .o files into translate_jumbo_1.o and since the .o file
is no longer completely unused, the linker will get upset about the
dangling references.

So something that used to be "just" dead code compilation with
dangling references becomes a linking error when compiling with jumbo.

Change-Id: Id15f7e15804efe2fdf959c4db7fdade061477102
Reviewed-on: https://chromium-review.googlesource.com/c/1256685
Commit-Queue: Daniel Bratell <bratell@opera.com>
Reviewed-by: Takashi Toyoshima <toyoshim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#596168}
3 files changed