pgsql: Back out double-run of PDF/PS output.

Log Message:
-----------
Back out double-run of PDF/PS output.  Requires building bookindex.sgml
properly.

Remove SGML docs about openjade performance patch, and instead add
comment in style sheet where indenting code is commented out.

Backpatch to 8.2.X.

Modified Files:
--------------
    pgsql/doc/src/sgml:
        Makefile (r1.85 -> r1.86)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/Makefile.diff?r1=1.85&r2=1.86)
        docguide.sgml (r1.62 -> r1.63)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/docguide.sgml.diff?r1=1.62&r2=1.63)
        stylesheet.dsl (r1.31 -> r1.32)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/stylesheet.dsl.diff?r1=1.31&r2=1.32)