pgsql: Removed some variables no longer needed.

Log Message:
-----------
Removed some variables no longer needed.

Modified Files:
--------------
    pgsql/src/interfaces/ecpg:
        ChangeLog (r1.398 -> r1.399)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/ChangeLog?r1=1.398&r2=1.399)
    pgsql/src/interfaces/ecpg/compatlib:
        informix.c (r1.60 -> r1.61)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/compatlib/informix.c?r1=1.60&r2=1.61)
    pgsql/src/interfaces/ecpg/pgtypeslib:
        interval.c (r1.41 -> r1.42)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/pgtypeslib/interval.c?r1=1.41&r2=1.42)
        numeric.c (r1.33 -> r1.34)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/pgtypeslib/numeric.c?r1=1.33&r2=1.34)
        timestamp.c (r1.45 -> r1.46)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/pgtypeslib/timestamp.c?r1=1.45&r2=1.46)
    pgsql/src/interfaces/ecpg/preproc:
        type.c (r1.84 -> r1.85)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/preproc/type.c?r1=1.84&r2=1.85)