Удаление стилей страницы | Kotlin | WebView

Как отключить/не загружать стили страницы? Хочу переписать их, но не пойму, как отключить перед этим.

@SuppressLint("SetJavaScriptEnabled")
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    mRandom = Random()
    mHandler = Handler()

    mSwipeRefresh = findViewById(R.id.swiper);
    mSwipeRefresh?.setOnRefreshListener {
        injectCSS()
        mRunnable = Runnable {
            mSwipeRefresh?.isRefreshing = false
        }

        mHandler.postDelayed(
            mRunnable,
            (1000).toLong()
        )
    }

    webView = findViewById(R.id.main_web)
    webView?.settings?.javaScriptEnabled = true
    webView?.settings?.builtInZoomControls = false

    webView?.webViewClient = object : WebViewClient() {
        override fun onPageFinished(view: WebView, url: String) {
            injectCSS()
            super.onPageFinished(view, url)
        }
    }
    webView?.loadUrl("https://www.ru/")
}

private fun injectCSS() {
    try {
        val inputStream: InputStream = assets.open("style.css")
        val buffer = ByteArray(inputStream.available())
        inputStream.read(buffer)
        inputStream.close()
        val encoded: String = Base64.encodeToString(buffer, Base64.NO_WRAP)
        webView!!.loadUrl(
            "javascript:(function() {" +
                    "var parent = document.getElementsByTagName('head').item(0);" +
                    "var style = document.createElement('style');" +
                    "style.type = 'text/css';" +  // Tell the browser to BASE64-decode the string into your script !!!
                    "style.innerHTML = window.atob('" + encoded + "');" +
                    "parent.appendChild(style)" +
                    "})()"
        )
    } catch (e: Exception) {
        e.printStackTrace()
    }
}