Drop support for reencode images

app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt

@@ -7,7 +7,7 @@ import com.google.gson.reflect.TypeToken
 import com.jakewharton.disklrucache.DiskLruCache
 import eu.kanade.tachiyomi.data.source.model.Page
 import eu.kanade.tachiyomi.util.DiskUtils
-import eu.kanade.tachiyomi.util.saveImageTo
+import eu.kanade.tachiyomi.util.saveTo
 import okhttp3.Response
 import okio.Okio
 import rx.Observable
@@ -185,7 +185,7 @@ class ChapterCache(private val context: Context) {
      * @throws IOException image error.
      */
     @Throws(IOException::class)
-    fun putImageToCache(imageUrl: String, response: Response, reencode: Boolean) {
+    fun putImageToCache(imageUrl: String, response: Response) {
         // Initialize editor (edits the values for an entry).
         var editor: DiskLruCache.Editor? = null
 
@@ -195,7 +195,7 @@ class ChapterCache(private val context: Context) {
             editor = diskCache.edit(key) ?: throw IOException("Unable to edit key")
 
             // Get OutputStream and write image with Okio.
-            response.body().source().saveImageTo(editor.newOutputStream(0), reencode)
+            response.body().source().saveTo(editor.newOutputStream(0))
 
             diskCache.flush()
             editor.commit()