Remove more old rules from proguard

app/proguard.cfg

@@ -4,7 +4,6 @@
 -optimizations !code/allocation/variable
 -optimizationpasses 5
 
--dontpreverify
 -allowaccessmodification
 -dontskipnonpubliclibraryclassmembers
 
@@ -25,15 +24,6 @@
     public static void write(...);
 }
 
--keepclassmembers enum * {
-    public static **[] values();
-    public static ** valueOf(java.lang.String);
-}
-
--keepclassmembers class * implements android.os.Parcelable {
-    static android.os.Parcelable$Creator CREATOR;
-}
-
 -keep public class org.jsoup.** {
     public *;
 }