pgsql: Use dlist/dclist instead of PROC_QUEUE / SHM_QUEUE for heavyweig

Use dlist/dclist instead of PROC_QUEUE / SHM_QUEUE for heavyweight locks

Part of a series to remove SHM_QUEUE. ilist.h style lists are more widely used
and have an easier to use interface.

As PROC_QUEUE is now unused, remove it.

Reviewed-by: Thomas Munro <thomas(dot)munro(at)gmail(dot)com> (in an older version)
Discussion: https://postgr.es/m/20221120055930.t6kl3tyivzhlrzu2@awork3.anarazel.de
Discussion: https://postgr.es/m/20200211042229.msv23badgqljrdg2@alap3.anarazel.de

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/5764f611e10b126e09e37fdffbe884c44643a6ce

Modified Files
--------------
src/backend/access/transam/twophase.c | 4 +-
src/backend/storage/lmgr/deadlock.c | 87 +++++-------
src/backend/storage/lmgr/lock.c | 155 ++++++++--------------
src/backend/storage/lmgr/proc.c | 243 +++++++++++-----------------------
src/include/storage/lock.h | 15 +--
src/include/storage/proc.h | 17 ++-
src/tools/pgindent/typedefs.list | 1 -
7 files changed, 183 insertions(+), 339 deletions(-)