Switch to buildFeatures for enabling buildConfig generation

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/build.gradle

@@ -74,6 +74,7 @@ android {
     }
 
     buildFeatures {
+        buildConfig true
         viewBinding true
         aidl true
     }

gradle.properties

@@ -49,6 +49,5 @@ android.lifecycleProcessor.incremental=true
 # turn off AP discovery in compile path, and therefore turn on Compile Avoidance
 kapt.include.compile.classpath=false
 android.enableR8.fullMode=false
-android.defaults.buildfeatures.buildconfig=true
 android.nonTransitiveRClass=false