Fix #398 Removed a fake vuln in WP Super Cache

data/plugin_vulns.xml

@@ -5571,6 +5571,9 @@
       <type>XSS</type>
       <fixed_in>1.3.1</fixed_in>
     </vulnerability>
+    <!-- Fake vuln,
+    See http://archives.neohapsis.com/archives/bugtraq/2009-07/0175.html
+        http://osvdb.org/56762
     <vulnerability>
       <title>WP Super Cache 0.8.3 - wp-cache-phase1.php plugin Parameter Remote File Inclusion</title>
       <references>
@@ -5578,6 +5581,7 @@
       </references>
       <type>RCE</type>
     </vulnerability>
+    -->
   </plugin>
 
   <plugin name="ripe-hd-player">