pgsql: Remove HAVE_LONG_LONG_INT

Remove HAVE_LONG_LONG_INT

The presence of long long int is now implied in the requirement for
C99 and the configure check for the same.

We keep the define hard-coded in ecpg_config.h for backward
compatibility with ecpg-using user code.

Discussion: https://www.postgresql.org/message-id/flat/5cdd6a2b-b2c7-c6f6-344c-a406d5c1a254%402ndquadrant.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/effa40281bb1f6c71e81c980f86852ab3be603c3

Modified Files
--------------
configure | 117 ------
configure.in | 1 -
src/include/c.h | 2 -
src/include/pg_config.h.in | 6 -
src/include/pg_config.h.win32 | 3 -
src/interfaces/ecpg/ecpglib/data.c | 14 -
src/interfaces/ecpg/ecpglib/descriptor.c | 4 -
src/interfaces/ecpg/ecpglib/execute.c | 6 +-
src/interfaces/ecpg/ecpglib/misc.c | 6 -
src/interfaces/ecpg/include/ecpg_config.h.in | 2 +-
src/interfaces/ecpg/preproc/ecpg.trailer | 36 +-
src/interfaces/ecpg/test/expected/sql-sqlda.c | 130 +++---
src/interfaces/ecpg/test/expected/sql-sqlda.stderr | 450 ++++++++++-----------
src/interfaces/ecpg/test/sql/sqlda.pgc | 2 -
14 files changed, 296 insertions(+), 483 deletions(-)