NaCl cleanup: Remove now-unneeded initialisation of NaCl libraries

components/nacl/renderer/ppb_nacl_private.h

Index: components/nacl/renderer/ppb_nacl_private.h
diff --git a/components/nacl/renderer/ppb_nacl_private.h b/components/nacl/renderer/ppb_nacl_private.h
index afaefa9ba9841afb9a4498d3bdddba9251c57bb8..4542c813771bd2ffd2e153062423e4d4df666705 100644
--- a/components/nacl/renderer/ppb_nacl_private.h
+++ b/components/nacl/renderer/ppb_nacl_private.h
@@ -228,10 +228,6 @@ struct PPB_NaCl_Private {
                        scoped_ptr<IPC::SyncChannel>* translator_channel,
                        base::ProcessId* process_id,
                        struct PP_CompletionCallback callback);
-  /* On POSIX systems, this function returns the file descriptor of
-   * /dev/urandom.  On non-POSIX systems, this function returns 0.
-   */
-  int32_t (*UrandomFD)(void);
   /* Returns a read-only (but executable) file descriptor / file info for
    * a url for pnacl translator tools. Returns an invalid handle on failure.
    */