Drop unused patch-random-dateindex.sql

This patch was introduced in r1161 (February 2003) but it wasn't
mentioned in the patch-list.txt and checking git history since initial
version (phase3) didn't return any mention of it since then.

It clearly can't be ran on any modern mediawiki setup.

Change-Id: Ic5a8f0699dd31a181c31582be4958522ce3483b3

maintenance/archives/patch-random-dateindex.sql

@@ -1,54 +0,0 @@
--- patch-random-dateindex.sql
--- 2003-02-09
---
--- This patch does two things:
---  * Adds cur_random column to replace random table
---    (Requires change to SpecialRandom.php)
---    random table no longer needs refilling
---    Note: short-term duplicate results *are* possible, but very unlikely on large wiki
---
---  * Adds inverse_timestamp columns to cur and old and indexes
---    to allow descending timestamp sort in history, contribs, etc
---    (Requires changes to Article.php, DatabaseFunctions.php,
---     ... )
---                       cur_timestamp  inverse_timestamp
---     99999999999999 - 20030209222556 = 79969790777443
---     99999999999999 - 20030211083412 = 79969788916587
---
---    We won't need this on MySQL 4; there will be a removal patch later.
-
--- Indexes:
--- cur needs (cur_random) for random sort
--- cur and old need (namespace,title,timestamp) index for history,watchlist,rclinked
--- cur and old need (user,timestamp) index for contribs
--- cur and old need (user_text,timestamp) index for contribs
-
-ALTER TABLE /*$wgDBprefix*/cur
-  DROP INDEX cur_user,
-  DROP INDEX cur_user_text,
-  ADD COLUMN cur_random real unsigned NOT NULL,
-  ADD COLUMN inverse_timestamp char(14) binary NOT NULL default '',
-  ADD INDEX (cur_random),
-  ADD INDEX name_title_timestamp (cur_namespace,cur_title,inverse_timestamp),
-  ADD INDEX user_timestamp (cur_user,inverse_timestamp),
-  ADD INDEX usertext_timestamp (cur_user_text,inverse_timestamp);
-
-UPDATE /*$wgDBprefix*/cur SET
-  inverse_timestamp=99999999999999-cur_timestamp,
-  cur_random=RAND();
-
-ALTER TABLE /*$wgDBprefix*/old
-  DROP INDEX old_user,
-  DROP INDEX old_user_text,
-  ADD COLUMN inverse_timestamp char(14) binary NOT NULL default '',
-  ADD INDEX name_title_timestamp (old_namespace,old_title,inverse_timestamp),
-  ADD INDEX user_timestamp (old_user,inverse_timestamp),
-  ADD INDEX usertext_timestamp (old_user_text,inverse_timestamp);
-
-UPDATE /*$wgDBprefix*/old SET
-  inverse_timestamp=99999999999999-old_timestamp;
-
--- If leaving wiki publicly accessible in read-only mode during
--- the upgrade, comment out the below line; leave 'random' table
--- in place until the new software is installed.
-DROP TABLE /*$wgDBprefix*/random;