Hide webtoon reader scrollbars

Fixes #8676

(cherry picked from commit 99a717f84914d9bcd512359fc5f9c74fa07f08e4)

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonRecyclerView.kt

@@ -53,6 +53,11 @@ class WebtoonRecyclerView @JvmOverloads constructor(
     var tapListener: ((MotionEvent) -> Unit)? = null
     var longTapListener: ((MotionEvent) -> Boolean)? = null
 
+    init {
+        isVerticalScrollBarEnabled = false
+        isHorizontalScrollBarEnabled = false
+    }
+
     override fun onMeasure(widthSpec: Int, heightSpec: Int) {
         halfWidth = MeasureSpec.getSize(widthSpec) / 2
         halfHeight = MeasureSpec.getSize(heightSpec) / 2