[RFA] Remove calls to inside_entry_file

[Andrew Cagney]

> 
> Oh, you wrote "Consider that approved" so I didn't thought I'd have
> to send it again to gdb-patches.  However, what about the important
> part of my posting:

Yes, just please always post changes.

>>I've checked in the frame.c patch but still, I don't understand this
>>decision.  So called out-of-date targets can easily add the
>>inside_entry_file() call to their frame_chain_valid() implementation
>>so removing this call from blockframe.c does not necessarily break
>>them.  Keeping this call in blockframe.c on the other hand breaks
>>some targets for which this call is plainly wrong.  So the logic would
>>imply to remove the call in favour of *all* targets able to run correctly.

Per my previous comment, I'd prefer to not touch the old code at all - 
let it die.  Mark, I'll note, already has i386 replacement code in waiting.

The other thing to do is to ask DanielJ if he knows anything more about 
that specific case.

Andrew