diff --git a/doc/arm/Bv9ARM-book.xml b/doc/arm/Bv9ARM-book.xml
index 8f7fbe475b..1176fead57 100644
--- a/doc/arm/Bv9ARM-book.xml
+++ b/doc/arm/Bv9ARM-book.xml
@@ -8988,26 +8988,6 @@ avoid-v6-udp-ports { 40000; range 50000 60000; };
 	      </listitem>
 	    </varlistentry>
 
-	    <varlistentry>
-	      <term><command>resolver-nonbackoff-tries</command></term>
-	      <listitem>
-		<para>
-		  Specifies how many retries occur before exponential
-		  backoff kicks in.  The default is <userinput>3</userinput>.
-		</para>
-	      </listitem>
-	    </varlistentry>
-
-	    <varlistentry>
-	      <term><command>resolver-retry-interval</command></term>
-	      <listitem>
-		<para>
-		  The base retry interval in milliseconds.
-		  The default is <userinput>800</userinput>.
-		</para>
-	      </listitem>
-	    </varlistentry>
-
 	    <varlistentry>
 	      <term><command>sig-validity-interval</command></term>
 	      <listitem>