pgsql: Revert "Custom reloptions for table AM"

Revert "Custom reloptions for table AM"

This reverts commit c95c25f9af4bc77f2f66a587735c50da08c12b37 due to multiple
design issues spotted after commit.

Reported-by: Jeff Davis
Discussion: https://postgr.es/m/11550b536211d5748bb2865ed6cb3502ff073bf7.camel%40j-davis.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/867cc7b6ddb9d998103688a56048fe9a1ddd972a

Modified Files
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src/backend/access/common/reloptions.c   |  6 ++--
src/backend/access/heap/heapam_handler.c | 12 -------
src/backend/access/table/tableamapi.c    | 25 ---------------
src/backend/commands/tablecmds.c         | 55 +++++++++++++-------------------
src/backend/postmaster/autovacuum.c      |  4 +--
src/backend/utils/cache/relcache.c       |  6 +---
src/include/access/reloptions.h          |  2 --
src/include/access/tableam.h             | 43 -------------------------
8 files changed, 27 insertions(+), 126 deletions(-)