pgsql: Remove some unnecessary variable assignments, per results of

Log Message:
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Remove some unnecessary variable assignments, per results of "clang"
static checker. Paul Matthews

Modified Files:
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pgsql/src/backend/utils/adt:
geo_ops.c (r1.103 -> r1.104)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/geo_ops.c?r1=1.103&r2=1.104)