pgsql: Remove useless "return;" lines

Remove useless "return;" lines

Discussion: https://postgr.es/m/20191128144653.GA27883@alvherre.pgsql

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/3974c4a72459fc07acef3ee1369d63a7b8305b62

Modified Files
--------------
contrib/fuzzystrmatch/fuzzystrmatch.c | 2 --
contrib/ltree/ltxtquery_io.c | 1 -
contrib/pg_standby/pg_standby.c | 1 -
contrib/pgcrypto/mbuf.c | 2 --
contrib/seg/seg.c | 2 --
contrib/sepgsql/selinux.c | 2 --
src/backend/access/gist/gist.c | 2 --
src/backend/access/rmgrdesc/genericdesc.c | 2 --
src/backend/access/transam/twophase.c | 2 --
src/backend/access/transam/xact.c | 1 -
src/backend/executor/nodeTableFuncscan.c | 2 --
src/backend/jit/llvm/llvmjit.c | 2 --
src/backend/libpq/hba.c | 1 -
src/backend/replication/logical/launcher.c | 2 --
src/backend/replication/walsender.c | 3 ---
src/backend/rewrite/rowsecurity.c | 2 --
src/backend/utils/adt/datetime.c | 2 --
src/bin/pg_ctl/pg_ctl.c | 2 --
src/bin/pg_dump/compress_io.c | 4 ----
src/bin/pg_dump/pg_backup_archiver.c | 5 -----
src/bin/pg_dump/pg_backup_custom.c | 7 -------
src/bin/pg_dump/pg_backup_directory.c | 7 -------
src/bin/pg_dump/pg_backup_null.c | 3 ---
src/bin/pg_dump/pg_backup_tar.c | 3 ---
src/bin/pg_dump/pg_dump.c | 2 --
src/bin/pg_upgrade/parallel.c | 4 ----
src/bin/pg_upgrade/relfilenode.c | 4 ----
src/bin/pg_upgrade/tablespace.c | 2 --
src/bin/psql/common.c | 2 --
src/fe_utils/print.c | 2 --
src/interfaces/ecpg/compatlib/informix.c | 2 --
src/interfaces/ecpg/pgtypeslib/datetime.c | 1 -
src/interfaces/ecpg/pgtypeslib/dt_common.c | 2 --
src/interfaces/ecpg/pgtypeslib/timestamp.c | 1 -
src/interfaces/libpq/fe-auth-scram.c | 1 -
src/pl/plperl/plperl.c | 4 ----
src/pl/plpgsql/src/pl_exec.c | 2 --
src/port/win32error.c | 1 -
src/test/examples/testlo.c | 2 --
src/test/examples/testlo64.c | 2 --
40 files changed, 96 deletions(-)