Revert "Tweak how `getChapterUrl` works (#8392)" (#8427)

This reverts commit 1a25cea0d665aefdc422ffe074d50c4a72fc0fe8.

source-api/src/main/java/eu/kanade/tachiyomi/source/online/HttpSource.kt

@@ -375,11 +375,7 @@ abstract class HttpSource : CatalogueSource {
      * @return url of the chapter
      */
     open fun getChapterUrl(chapter: SChapter): String {
-        return if (chapter.url.startsWith("http")) {
-            chapter.url
-        } else {
-            baseUrl + chapter.url
-        }
+        return pageListRequest(chapter).url.toString()
     }
 
     /**