Revert "Refact/flutter 3.24.4 (#9870)" (#9871)

This reverts commit 5eb2c31207.

flutter/android/build.gradle

@@ -1,3 +1,18 @@
+buildscript {
+    ext.kotlin_version = '1.9.10'
+    repositories {
+        google()
+        jcenter()
+        maven { url 'https://jitpack.io' }
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:7.0.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.google.gms:google-services:4.3.14'
+    }
+}
+
 allprojects {
     repositories {
         google()
@@ -9,8 +24,6 @@ allprojects {
 rootProject.buildDir = '../build'
 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-subprojects {
     project.evaluationDependsOn(':app')
 }