[Patch, libgfortran] Remove unnecessary buffer flushes

[Jerry DeLisle]

Janne Blomqvist wrote:
> Hi,
> 
> the attached patch removes a couple of buffer flushes that appear to be
> unnecessary.
> 
> Regtested on i686-pc-linux-gnu. Ok for trunk?
> 
> 
OK, also note that this fixes PR39782 by eliminating the offending code. That PR 
is a result of the stell arg.  Valgrind is seeing a problem with the stream 
pointer I think.

Regards,

Jerry