[pgpool-committers: 9153] pgpool: Remove unnecessary macro.

[Tatsuo Ishii]

Remove unnecessary macro.

The macro "DUAL_MODE" is no longer used anywhere.
Moreover, if it is used, it causes a compile error.

Branch
------
V4_4_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=b6e96a94de1a4d8fd3813a7a522f2fc6ecf3f819

Modified Files
--------------
src/include/pool.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)