pgsql: Revert FETCH/MOVE int64 patch.

Log Message:
-----------
Revert FETCH/MOVE int64 patch. Was using incorrect checks for
fetch/move in scan.l.

Modified Files:
--------------
pgsql/src/backend/commands:
portalcmds.c (r1.52 -> r1.53)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/portalcmds.c.diff?r1=1.52&r2=1.53)
pgsql/src/backend/executor:
spi.c (r1.160 -> r1.161)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/spi.c.diff?r1=1.160&r2=1.161)
pgsql/src/backend/parser:
gram.y (r2.563 -> r2.564)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/gram.y.diff?r1=2.563&r2=2.564)
scan.l (r1.136 -> r1.137)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/scan.l.diff?r1=1.136&r2=1.137)
pgsql/src/backend/tcop:
postgres.c (r1.504 -> r1.505)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/tcop/postgres.c.diff?r1=1.504&r2=1.505)
pquery.c (r1.109 -> r1.110)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/tcop/pquery.c.diff?r1=1.109&r2=1.110)
pgsql/src/include/executor:
spi.h (r1.56 -> r1.57)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/executor/spi.h.diff?r1=1.56&r2=1.57)
pgsql/src/include/nodes:
parsenodes.h (r1.328 -> r1.329)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/nodes/parsenodes.h.diff?r1=1.328&r2=1.329)
pgsql/src/include/tcop:
pquery.h (r1.38 -> r1.39)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/tcop/pquery.h.diff?r1=1.38&r2=1.39)
pgsql/src/include/utils:
portal.h (r1.68 -> r1.69)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/portal.h.diff?r1=1.68&r2=1.69)