bug#24758: 26.0.50; speedbar broken in -nw

[martin rudalics]

>> tty-create-frame-with-faces: Can’t change the ‘minibuffer’ parameter of
>> this frameInval\
>> id face reference: font-lock-comment-delimiter-face
>> Invalid face reference: font-lock-comment-face
>> Invalid face reference: font-lock-comment-delimiter-face
>> Invalid face reference: font-lock-comment-face
>> Invalid face reference: mode-line-buffer-id
>> Invalid face reference: font-lock-comment-delimiter-face
>> Invalid face reference: font-lock-comment-face
>> Invalid face reference: font-lock-comment-delimiter-face
>> Invalid face reference: font-lock-comment-face
>> Invalid face reference: mode-line-buffer-id
>> <snip>
>
> Martin, can you take a look?  I think the first error message above is
> the key to the problem.  It only happens on master.

Asking for a minibuffer-less frame on a TTY doesn't sound like a good
idea.  Hopefully fixed now.

martin