Remove obsolete Tru64 UNIX V5.1B support

[Andrew Haley]

On 03/05/2012 05:01 PM, Rainer Orth wrote:
> * In libjava, there were several workarounds for OSF bugs/quirks.  I've
>   ripped them out as explained above.
> 
>   There's one particular issue: the change to java/io/File.java required
>   my to regenerate the .class file in classpath.  I've used Sun javac
>   -target 1.5 for that and hope I got it right.

OK.

Andrew.