bug#5042: bug#9917: 24.0.90; Make `goto-line' consistent with the line number from the minibuffer

[Drew Adams]

> 3.2. 'goto-line-relative' is bound in Info mode to `M-g M-g'.

I gave my opinion about this.  And it was a reason given
for having two different commands: Do not base which
command gets the standard key binding on anything to do
with the current context - in particular, on whether the
buffer is narrowed.

Please do _not_ bind `M-g M-g' to anything different in Info.

Emacs should not be second-guessing users about this.
The point of having two commands (and two key bindings)
is to let users get the behavior they want, in any
context.  Please do not have the same key bound to
different behaviors for going to a line.