Log Message:
shells/zsh: Stop regen configure, drop dependencies to auto{conf,make}.

Our local patch for aczsh.m4, introduced to 5.0.2nb1:

http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/shells/zsh/Makefile#rev1.63

has been upstreamed. There is no longer a point to regen configure;
tiny patch to configure.ac can be directly applied to configure itself.

Bump revision.