update: remove android folder, update app.json

android/app/proguard-rules.pro

@@ -1,14 +0,0 @@
-# Add project specific ProGuard rules here.
-# By default, the flags in this file are appended to flags specified
-# in /usr/local/Cellar/android-sdk/24.3.3/tools/proguard/proguard-android.txt
-# You can edit the include path and order by changing the proguardFiles
-# directive in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# react-native-reanimated
--keep class com.swmansion.reanimated.** { *; }
--keep class com.facebook.react.turbomodule.** { *; }
-
-# Add any project specific keep options here: