[lex.name] Strike "Derived Core Properties"

source/lex.tex

@@ -815,8 +815,7 @@
 \indextext{name!length of}%
 \indextext{name}%
 \begin{note}
-The character properties XID_Start and XID_Continue are Derived Core Properties
-as described by \UAX{44} of the Unicode Standard.
+The character properties XID_Start and XID_Continue are described by \UAX{44} of the Unicode Standard.
 \begin{footnote}
 On systems in which linkers cannot accept extended
 characters, an encoding of the \grammarterm{universal-character-name} can be used in