Application: Stop setting custom thread policy

Enabling warnings for disk reads and writes spams logcat thanks to SharedPreferences
running entirely on main thread so disable it entirely since we don't use
any patterns in Viscerion that would benefit from any StrictMode thread policy warnings.

Signed-off-by: Harsh Shandilya <msfjarvis@gmail.com>

app/src/main/java/com/wireguard/android/Application.kt

@@ -61,11 +61,6 @@ class Application : android.app.Application() {
 
         if (BuildConfig.DEBUG) {
             Timber.plant(Timber.DebugTree())
-            StrictMode.setThreadPolicy(StrictMode.ThreadPolicy.Builder()
-                    .detectAll()
-                    .penaltyLog()
-                    .build()
-            )
             StrictMode.setVmPolicy(StrictMode.VmPolicy.Builder()
                     .detectAll()
                     .penaltyLog()