pgsql: Remove because it is partly done and we might not want to go

Log Message:
-----------
Remove because it is partly done and we might not want to go farther:
< * -Compress WAL entries [wal]

Modified Files:
--------------
pgsql/doc:
TODO (r1.1543 -> r1.1544)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1543&amp;r2=1.1544)
pgsql/doc/src/FAQ:
TODO.html (r1.50 -> r1.51)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.50&amp;r2=1.51)