pgsql: No longer needed: < < * Add code to detect an SMP machine and

Log Message:
-----------
No longer needed:

<
< * Add code to detect an SMP machine and handle spinlocks accordingly
<   from distributted.net, http://www1.distributed.net/source,
<   in client/common/cpucheck.cpp
<
<   On SMP machines, it is possible that locks might be released shortly,
<   while on non-SMP machines, the backend should sleep so the process
<   holding the lock can complete and release it.

Modified Files:
--------------
    pgsql/doc:
        TODO (r1.1688 -> r1.1689)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1688&r2=1.1689)
    pgsql/doc/src/FAQ:
        TODO.html (r1.195 -> r1.196)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.195&r2=1.196)