Revert "Update extra Android config files"

This reverts commit 6cfabd5.

flutter_ffi_plugin/example/android/gradle.properties

@@ -1,3 +1,3 @@
-org.gradle.jvmargs=-Xmx4G -XX:+HeapDumpOnOutOfMemoryError
+org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true

flutter_ffi_plugin/example/android/settings.gradle

@@ -1,25 +1,11 @@
-pluginManagement {
-    def flutterSdkPath = {
-        def properties = new Properties()
-        file("local.properties").withInputStream { properties.load(it) }
-        def flutterSdkPath = properties.getProperty("flutter.sdk")
-        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
-        return flutterSdkPath
-    }()
+include ':app'
 
-    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
 
-    repositories {
-        google()
-        mavenCentral()
-        gradlePluginPortal()
-    }
-}
+assert localPropertiesFile.exists()
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
 
-plugins {
-    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
-    id "com.android.application" version "7.3.0" apply false
-    id "org.jetbrains.kotlin.android" version "1.7.10" apply false
-}
-
-include ":app"
+def flutterSdkPath = properties.getProperty("flutter.sdk")
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"