Clean up keep rules.

These rules are already bundled in libraries or `proguard-android-optimize.txt`.

Author: ychescale9

android/app/keep-rules.pro

@@ -1,50 +1,3 @@
--verbose
-
-# Keep annotations with RUNTIME retention and their defaults.
--keepattributes RuntimeVisible*Annotations, AnnotationDefault
-
-# For crash reporting
--keepattributes LineNumberTable, SourceFile
-
-# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native
--keepclasseswithmembernames class * {
-    native <methods>;
-}
-
-# Enum.valueOf(Class, String) and others invoke this method reflectively.
--keepclassmembers,allowoptimization enum * {
-    public static **[] values();
-}
-
-# Parcelable CREATOR fields are looked up reflectively when de-parceling.
--keepclasseswithmembers class * implements android.os.Parcelable {
-  public static final android.os.Parcelable$Creator CREATOR;
-}
-
-# Keep `Companion` object fields of serializable classes.
-# This avoids serializer lookup through `getDeclaredClasses` as done for named companion objects.
--if @kotlinx.serialization.Serializable class **
--keepclassmembers class <1> {
-    static <1>$Companion Companion;
-}
-
-# Keep `serializer()` on companion objects (both default and named) of serializable classes.
--if @kotlinx.serialization.Serializable class ** {
-    static **$* *;
-}
--keepclassmembers class <2>$<3> {
-    kotlinx.serialization.KSerializer serializer(...);
-}
-
-# Keep `INSTANCE.serializer()` of serializable objects.
--if @kotlinx.serialization.Serializable class ** {
-    public static ** INSTANCE;
-}
--keepclassmembers class <1> {
-    public static <1> INSTANCE;
-    kotlinx.serialization.KSerializer serializer(...);
-}
-
 # Remove Compose tracing strings
 -assumenosideeffects public class androidx.compose.runtime.ComposerKt {
    boolean isTraceInProgress();