pgsql: Remove unneeded volatile qualifier in fmgr.c.

Remove unneeded volatile qualifier in fmgr.c.

Currently, the save_nestlevel variable in fmgr_security_definer()
is marked volatile. While this may have been necessary when it was
used in a PG_CATCH section (as explained in the comment for PG_TRY
in elog.h), it appears to have been unnecessary since commit
82a47982f3, which removed its use in a PG_CATCH section.

Author: Julien Rouhaud <rjuju123(at)gmail(dot)com>
Reviewed-by: Bertrand Drouvot <bertranddrouvot(dot)pg(at)gmail(dot)com>
Discussion: https://postgr.es/m/Z6xbAgXKY2L-3d5Q%40jrouhaud

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/9e66a2b7841a5c1f929103c82c73244d3f5f3416

Modified Files
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src/backend/utils/fmgr/fmgr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)