pgsql: Remove translation marker from libpq-be-fe-helpers.h.

Remove translation marker from libpq-be-fe-helpers.h.

Commit 112faf1378e introduced a translation marker in libpq-be-fe-helpers.h,
but this caused build failures on some platforms—such as the one reported
by buildfarm member indri—due to linker issues with dblink. This is the same
problem previously addressed in commit 213c959a294.

To fix the issue, this commit removes the translation marker from
libpq-be-fe-helpers.h, following the approach used in 213c959a294.
It also removes the associated gettext_noop() calls added in commit
112faf1378e, as they are no longer needed.

While reviewing this, a gettext_noop() call was also found in
contrib/basic_archive. Since contrib modules don't support translation,
this call has been removed as well.

Per buildfarm member indri.

Author: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
Reviewed-by: Álvaro Herrera <alvherre(at)kurilemu(dot)de>
Discussion: https://postgr.es/m/0e6299d9-608a-4ffa-aeb1-40cb8a99000b@oss.nttdata.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/a7ca73af662bc95e14058ac3f8fcf5d257f8bf79

Modified Files
--------------
contrib/basic_archive/basic_archive.c | 2 +-
contrib/dblink/dblink.c | 4 ++--
contrib/postgres_fdw/connection.c | 2 +-
src/backend/replication/libpqwalreceiver/libpqwalreceiver.c | 2 +-
src/include/libpq/libpq-be-fe-helpers.h | 2 +-
5 files changed, 6 insertions(+), 6 deletions(-)