diff --git a/sys/kern/kern_mutex.c b/sys/kern/kern_mutex.c
index 4829e73debbb..d4809af17f12 100644
--- a/sys/kern/kern_mutex.c
+++ b/sys/kern/kern_mutex.c
@@ -31,28 +31,7 @@
  */
 
 /*
- * Machine independent bits of mutex implementation and implementation of
- * `witness' structure & related debugging routines.
- */
-
-/*
- *	Main Entry: witness
- *	Pronunciation: 'wit-n&s
- *	Function: noun
- *	Etymology: Middle English witnesse, from Old English witnes knowledge,
- *	    testimony, witness, from 2wit
- *	Date: before 12th century
- *	1 : attestation of a fact or event : TESTIMONY
- *	2 : one that gives evidence; specifically : one who testifies in
- *	    a cause or before a judicial tribunal
- *	3 : one asked to be present at a transaction so as to be able to
- *	    testify to its having taken place
- *	4 : one who has personal knowledge of something
- *	5 a : something serving as evidence or proof : SIGN
- *	  b : public affirmation by word or example of usually
- *	      religious faith or conviction <the heroic witness to divine
- *	      life -- Pilot>
- *	6 capitalized : a member of the Jehovah's Witnesses 
+ * Machine independent bits of mutex implementation.
  */
 
 #include "opt_ddb.h"
diff --git a/sys/kern/subr_turnstile.c b/sys/kern/subr_turnstile.c
index 4829e73debbb..d4809af17f12 100644
--- a/sys/kern/subr_turnstile.c
+++ b/sys/kern/subr_turnstile.c
@@ -31,28 +31,7 @@
  */
 
 /*
- * Machine independent bits of mutex implementation and implementation of
- * `witness' structure & related debugging routines.
- */
-
-/*
- *	Main Entry: witness
- *	Pronunciation: 'wit-n&s
- *	Function: noun
- *	Etymology: Middle English witnesse, from Old English witnes knowledge,
- *	    testimony, witness, from 2wit
- *	Date: before 12th century
- *	1 : attestation of a fact or event : TESTIMONY
- *	2 : one that gives evidence; specifically : one who testifies in
- *	    a cause or before a judicial tribunal
- *	3 : one asked to be present at a transaction so as to be able to
- *	    testify to its having taken place
- *	4 : one who has personal knowledge of something
- *	5 a : something serving as evidence or proof : SIGN
- *	  b : public affirmation by word or example of usually
- *	      religious faith or conviction <the heroic witness to divine
- *	      life -- Pilot>
- *	6 capitalized : a member of the Jehovah's Witnesses 
+ * Machine independent bits of mutex implementation.
  */
 
 #include "opt_ddb.h"