Remove the context menu item 'Remove from list' from download shelf

Remove the context menu item 'Remove from shelf' from download shelf

BUG=23078
TEST=No more menu item on download item

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=27312

[Nico, 2009-09-25 18:41:46]

Looks good, but since this removes REMOVE_ITEM from download_shelf.h/cc , you
have to wait with submitting until I'm done with removing this on linux and os x
(and for os x I might have to wait until tvl is done with the localization
change). I'll ping this CL when I'm done with that.

[Nico, 2009-09-25 23:39:41]

Jeremy pointed out in the review of the os x part that
IDS_DOWNLOAD_MENU_REMOVE_ITEM is now no longer used and should be removed too.

(I will land the os x part later today, so this can go in soon once you also
remove IDS_DOWNLOAD_MENU_REMOVE_ITEM).

[Nico, 2009-09-26 00:12:53]

On 2009/09/25 23:39:41, Nico wrote:
> Jeremy pointed out in the review of the os x part that
> IDS_DOWNLOAD_MENU_REMOVE_ITEM is now no longer used and should be removed too.
> 
> (I will land the os x part later today, so this can go in soon once you also
> remove IDS_DOWNLOAD_MENU_REMOVE_ITEM).

Mac part just landed, Linux part went in earlier today. This is good to go once
IDS_DOWNLOAD_MENU_REMOVE_ITEM is removed (see my previous comment).

[Mohamed Mansour, 2009-09-26 00:44:20]

I added IDS_DOWNLOAD_MENU_REMOVE_ITEM, safe to commit now?

[Nico, 2009-09-26 00:55:48]

LG, assuming you tried it locally and it passes trybots etc. Thanks! :-)