[bug #696771] Remove misleading parenthetical aside
diff --git a/Doc/lib/libre.tex b/Doc/lib/libre.tex
index 7482b9c..0b0f477 100644
--- a/Doc/lib/libre.tex
+++ b/Doc/lib/libre.tex
@@ -313,8 +313,6 @@
 match one of the first 99 groups.  If the first digit of \var{number}
 is 0, or \var{number} is 3 octal digits long, it will not be interpreted
 as a group match, but as the character with octal value \var{number}.
-(There is a group 0, which is the entire matched pattern, but it can't
-be referenced with \regexp{\e 0}; instead, use \regexp{\e g<0>}.)
 Inside the \character{[} and \character{]} of a character class, all numeric
 escapes are treated as characters.