[Midnightbsd-cvs] src: Makefile: get rid of warns 0 hack.

[laffer1 at midnightbsd.org]

Log Message:
-----------
get rid of warns 0 hack.  we fixed the root problem a few months ago.

Modified Files:
--------------
    src/bin/expr:
        Makefile (r1.3 -> r1.4)
        (http://cvsweb.midnightbsd.org/src/bin/expr/Makefile?r1=1.3&r2=1.4)