pgsql: Remove fallbacks for strtoll, strtoull.

Remove fallbacks for strtoll, strtoull.

strtoll was backfilled with either __strtoll or strtoq on systems without
strtoll. The last such system on the buildfarm was an ancient HP-UX animal. We
don't support HP-UX anymore, so remove.

On other systems strtoll was present, but did not have a declaration. The last
known instance on the buildfarm was running an ancient OSX and shut down in
2019.

Author: Andres Freund <andres(at)anarazel(dot)de>
Reviewed-by: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
Discussion: https://postgr.es/m/20220804013546.h65najrzig764jar@awork3.anarazel.de

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/feb593506b9b57e21052a9a7323e8f23faabdde6

Modified Files
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configure | 47 --------------------------------------
configure.ac | 5 ----
src/include/c.h | 29 -----------------------
src/include/pg_config.h.in | 26 ---------------------
src/interfaces/ecpg/ecpglib/data.c | 5 +---
src/timezone/private.h | 4 ----
src/tools/msvc/Solution.pm | 8 -------
7 files changed, 1 insertion(+), 123 deletions(-)