Remove outdated startup and SSH banners

src/main.c

@@ -46,7 +46,6 @@ static const char *TAG = "firmware";
 
 void app_main(void)
 {
-    ESP_LOGI(TAG, "ESP32-S3 Serial Swiss Army Knife Phase 7E local UI reliability started");
 
     if (esp_psram_is_initialized()) {
         ESP_LOGI(TAG, "PSRAM initialized: %u bytes", (unsigned int)esp_psram_get_size());

src/ssh_transport.c

@@ -547,8 +547,7 @@ static esp_err_t create_context(void)
     (void)wolfSSH_CTX_SetChannelReqShellCb(context, accept_shell);
     (void)wolfSSH_CTX_SetChannelReqExecCb(context, reject_channel_request);
     (void)wolfSSH_CTX_SetChannelReqSubsysCb(context, reject_channel_request);
-    (void)wolfSSH_CTX_SetBanner(
-        context, "ESP32 Serial Swiss Army Knife - authenticated serial transport\r\n");
+
     s_context = context;
     return ESP_OK;
 }