Deprecate std/sharedlist and std/sharedtables (#19112)

lib/pure/collections/lists.nim

@@ -56,7 +56,6 @@ runnableExamples:
 
 ## # See also
 ## * `deques module <deques.html>`_ for double-ended queues
-## * `sharedlist module <sharedlist.html>`_ for shared singly-linked lists
 
 import std/private/since
 

lib/pure/collections/sharedlist.nim

@@ -11,6 +11,8 @@
 ##
 ## Unstable API.
 
+{.deprecated.}
+
 {.push stackTrace: off.}
 
 import

lib/pure/collections/sharedtables.nim

@@ -14,6 +14,8 @@
 ##
 ## Unstable API.
 
+{.deprecated.}
+
 import
   hashes, math, locks
 

lib/pure/collections/tables.nim

@@ -191,7 +191,6 @@ runnableExamples:
 ##
 ## * `json module<json.html>`_ for table-like structure which allows
 ##   heterogeneous members
-## * `sharedtables module<sharedtables.html>`_ for shared hash table support
 ## * `strtabs module<strtabs.html>`_ for efficient hash tables
 ##   mapping from strings to strings
 ## * `hashes module<hashes.html>`_ for helper functions for hashing