Bug 1838312 - Remove hardcoded compileSdkVersion, minSdkVersion and targetSdkVersion in Fenix and Focus

This removes the hardcoded compileSdkVersion, minSdkVersion and targetSdkVersion in Fenix and Focus
in favor of reading these SDK versions via our config from AC.

app/build.gradle

@@ -23,7 +23,7 @@ import static org.gradle.api.tasks.testing.TestResult.ResultType
 apply from: 'benchmark.gradle'
 
 android {
-    compileSdkVersion Config.compileSdkVersion
+    compileSdkVersion config.compileSdkVersion
 
     project.maybeConfigForJetpackBenchmark(it)
     if (project.hasProperty("testBuildType")) {
@@ -34,8 +34,8 @@ android {
 
     defaultConfig {
         applicationId "org.mozilla"
-        minSdkVersion Config.minSdkVersion
-        targetSdkVersion Config.targetSdkVersion
+        minSdkVersion config.minSdkVersion
+        targetSdkVersion config.targetSdkVersion
         versionCode 1
         versionName Config.generateDebugVersionName()
         vectorDrawables.useSupportLibrary = true

benchmark/build.gradle

@@ -9,7 +9,7 @@ plugins {
 
 android {
     namespace 'org.mozilla.fenix.benchmark'
-    compileSdk Config.compileSdkVersion
+    compileSdk config.compileSdkVersion
 
     compileOptions {
         sourceCompatibility = JavaVersion.VERSION_17
@@ -22,7 +22,7 @@ android {
 
     defaultConfig {
         minSdk 23
-        targetSdk Config.targetSdkVersion
+        targetSdk config.targetSdkVersion
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 

buildSrc/src/main/java/Config.kt

@@ -11,10 +11,6 @@ import java.util.Date
 import java.util.Locale
 
 object Config {
-    // Synchronized build configuration for all modules
-    const val compileSdkVersion = 33
-    const val minSdkVersion = 21
-    const val targetSdkVersion = 33
 
     @JvmStatic
     private fun generateDebugVersionName(): String {