chore(ffi/ts): rm send_message impls from fixtures

Author: coriolinus

crypto-ffi/bindings/js/benches/utils.ts

@@ -66,9 +66,6 @@ export async function setup() {
                     window._latestCommitBundle = commitBundle;
                     return window.ccModule.MlsTransportResponse.Success.new();
                 },
-                async sendMessage() {
-                    return window.ccModule.MlsTransportResponse.Success.new();
-                },
                 async prepareForTransport(
                     secret: HistorySecret
                 ): Promise<MlsTransportData> {

crypto-ffi/bindings/js/test/wdio/utils.ts

@@ -109,9 +109,6 @@ export async function setup() {
                 window._latestCommitBundle = commitBundle;
                 return window.ccModule.MlsTransportResponse.Success.new();
             },
-            async sendMessage() {
-                return window.ccModule.MlsTransportResponse.Success.new();
-            },
             async prepareForTransport(
                 secret: HistorySecret
             ): Promise<MlsTransportData> {