graphviz: remove unneeded option

general/genutils/graphviz.xml

@@ -243,8 +243,7 @@
 
 ./autogen.sh              &&
 ./configure --prefix=/usr \
-            --disable-php \
-            PS2PDF=true   &&
+            --disable-php &&
 make</userinput></screen>
 
     <para>
@@ -283,13 +282,6 @@ make</userinput></screen>
       does not support php version 8.
     </para>
 
-    <para>
-      <parameter>PS2PDF=true</parameter>: This is needed if <xref
-      linkend="gs"/> is not installed. Otherwise, the build
-      system tries to run <command>false</command>, which generates
-      an error.
-    </para>
-
     <para>
       <option>--with-javaincludedir="$JAVA_HOME/include
                                    -I$JAVA_HOME/include/linux"</option>: