pgsql: In pg_upgrade, no need to initialize global struct values; they

In pg_upgrade, no need to initialize global struct values; they are
always zeros. Also no need to free memory before we exit.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/497e65f822ff33ed964d1c891ee6de0d97d0b2a6

Modified Files
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contrib/pg_upgrade/info.c | 6 ------
contrib/pg_upgrade/pg_upgrade.c | 26 +-------------------------
contrib/pg_upgrade/pg_upgrade.h | 1 -
3 files changed, 1 insertions(+), 32 deletions(-)