pgsql: Remove IndexInfo.ii_OpclassOptions field

Remove IndexInfo.ii_OpclassOptions field

It is unnecessary to include this field in IndexInfo. It is only used
by DDL code, not during execution. It is really only used to pass
local information around between functions in index.c and indexcmds.c,
for which it is clearer to use local variables, like in similar cases.

Discussion: https://www.postgresql.org/message-id/flat/f84640e3-00d3-5abd-3f41-e6a19d33c40b(at)eisentraut(dot)org

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/784162357130f63b5130cd6517db21451692f9b3

Modified Files
--------------
src/backend/catalog/index.c | 33 +++++++++++++++------------------
src/backend/catalog/toasting.c | 3 +--
src/backend/commands/indexcmds.c | 30 +++++++++++++++++-------------
src/backend/nodes/makefuncs.c | 3 ---
src/include/catalog/index.h | 1 +
src/include/nodes/execnodes.h | 1 -
6 files changed, 34 insertions(+), 37 deletions(-)