Remove obsolete comments from the definition of the CollSeq object.
FossilOrigin-Name: 7b6951016f5bf4c21f843f09769ba176c709e785
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 72fa5fa..b9b9e6c 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -1150,19 +1150,7 @@
** structure. Conceptually, a collating sequence consists of a name and
** a comparison routine that defines the order of that sequence.
**
-** There may two separate implementations of the collation function, one
-** that processes text in UTF-8 encoding (CollSeq.xCmp) and another that
-** processes text encoded in UTF-16 (CollSeq.xCmp16), using the machine
-** native byte order. When a collation sequence is invoked, SQLite selects
-** the version that will require the least expensive encoding
-** translations, if any.
-**
-** The CollSeq.pUser member variable is an extra parameter that passed in
-** as the first argument to the UTF-8 comparison function, xCmp.
-** CollSeq.pUser16 is the equivalent for the UTF-16 comparison function,
-** xCmp16.
-**
-** If both CollSeq.xCmp and CollSeq.xCmp16 are NULL, it means that the
+** If CollSeq.xCmp is NULL, it means that the
** collating sequence is undefined. Indices built on an undefined
** collating sequence may not be read or written.
*/