Simplify the template to use loadReactNative (#120)

Author: cortinico

template/android/app/src/main/java/com/helloworld/MainApplication.kt

@@ -4,13 +4,11 @@ import android.app.Application
 import com.facebook.react.PackageList
 import com.facebook.react.ReactApplication
 import com.facebook.react.ReactHost
+import com.facebook.react.ReactNativeApplicationEntryPoint.loadReactNative
 import com.facebook.react.ReactNativeHost
 import com.facebook.react.ReactPackage
-import com.facebook.react.defaults.DefaultNewArchitectureEntryPoint.load
 import com.facebook.react.defaults.DefaultReactHost.getDefaultReactHost
 import com.facebook.react.defaults.DefaultReactNativeHost
-import com.facebook.react.soloader.OpenSourceMergedSoMapping
-import com.facebook.soloader.SoLoader
 
 class MainApplication : Application(), ReactApplication {
 
@@ -35,10 +33,6 @@ class MainApplication : Application(), ReactApplication {
 
   override fun onCreate() {
     super.onCreate()
-    SoLoader.init(this, OpenSourceMergedSoMapping)
-    if (BuildConfig.IS_NEW_ARCHITECTURE_ENABLED) {
-      // If you opted-in for the New Architecture, we load the native entry point for this app.
-      load()
-    }
+    loadReactNative(this)
   }
 }