diff --git a/rpcclient/extensions.go b/rpcclient/extensions.go
index 2dc9cff6..20d0549c 100644
--- a/rpcclient/extensions.go
+++ b/rpcclient/extensions.go
@@ -191,48 +191,6 @@ func (c *Client) ExistsAddresses(ctx context.Context, addresses []stdaddr.Addres
 	return c.ExistsAddressesAsync(ctx, addresses).Receive()
 }
 
-// FutureExistsExpiredTicketsResult is a future promise to deliver the result
-// of a FutureExistsExpiredTicketsResultAsync RPC invocation (or an
-// applicable error).
-type FutureExistsExpiredTicketsResult cmdRes
-
-// Receive waits for the response promised by the future and returns whether
-// or not the tickets exist in the expired ticket database.
-func (r *FutureExistsExpiredTicketsResult) Receive() (string, error) {
-	res, err := receiveFuture(r.ctx, r.c)
-	if err != nil {
-		return "", err
-	}
-
-	// Unmarshal the result as a string.
-	var exists string
-	err = json.Unmarshal(res, &exists)
-	if err != nil {
-		return "", err
-	}
-	return exists, nil
-}
-
-// ExistsExpiredTicketsAsync returns an instance of a type that can be used to get the
-// result of the RPC at some future time by invoking the Receive function on the
-// returned instance.
-func (c *Client) ExistsExpiredTicketsAsync(ctx context.Context, hashes []*chainhash.Hash) *FutureExistsExpiredTicketsResult {
-	strHashes := make([]string, len(hashes))
-	for i := range hashes {
-		strHashes[i] = hashes[i].String()
-	}
-	cmd := chainjson.NewExistsExpiredTicketsCmd(strHashes)
-	return (*FutureExistsExpiredTicketsResult)(c.sendCmd(ctx, cmd))
-}
-
-// ExistsExpiredTickets returns information about whether or not a ticket hash exists
-// in the expired ticket database.
-//
-// NOTE: This is a dcrd extension.
-func (c *Client) ExistsExpiredTickets(ctx context.Context, hashes []*chainhash.Hash) (string, error) {
-	return c.ExistsExpiredTicketsAsync(ctx, hashes).Receive()
-}
-
 // FutureExistsLiveTicketResult is a future promise to deliver the result
 // of a FutureExistsLiveTicketResultAsync RPC invocation (or an
 // applicable error).