sysctl: Remove (very) old file changelog

These comments are older than 2003 and therefore do not bare any
relevance on the current state of the sysctl.c file. Remove them as they
confuse more than clarify.

Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Kees Cook <kees@kernel.org>
Signed-off-by: Joel Granados <joel.granados@kernel.org>

Author: Joelgranados

kernel/sysctl.c

@@ -1,22 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * sysctl.c: General linux system control interface
- *
- * Begun 24 March 1995, Stephen Tweedie
- * Added /proc support, Dec 1995
- * Added bdflush entry and intvec min/max checking, 2/23/96, Tom Dyas.
- * Added hooks for /proc/sys/net (minor, minor patch), 96/4/1, Mike Shaver.
- * Added kernel/java-{interpreter,appletviewer}, 96/5/10, Mike Shaver.
- * Dynamic registration fixes, Stephen Tweedie.
- * Added kswapd-interval, ctrl-alt-del, printk stuff, 1/8/97, Chris Horn.
- * Made sysctl support optional via CONFIG_SYSCTL, 1/10/97, Chris
- *  Horn.
- * Added proc_doulongvec_ms_jiffies_minmax, 09/08/99, Carlos H. Bauer.
- * Added proc_doulongvec_minmax, 09/08/99, Carlos H. Bauer.
- * Changed linked lists to use list.h instead of lists.h, 02/24/00, Bill
- *  Wendling.
- * The list_for_each() macro wasn't appropriate for the sysctl loop.
- *  Removed it and replaced it with older style, 03/23/00, Bill Wendling
  */
 
 #include <linux/sysctl.h>