Let DCHECK in non-official-release build be opt-in with dcheck_always_on=1 only

mojo/shell/init.cc

Index: mojo/shell/init.cc
diff --git a/mojo/shell/init.cc b/mojo/shell/init.cc
index d6602d5bf92dcf7e1ff5b82798db76748cfa8b35..481e5ee4a4dbdb007172f99bad0b9595429d2403 100644
--- a/mojo/shell/init.cc
+++ b/mojo/shell/init.cc
@@ -12,8 +12,6 @@ namespace shell {
 void InitializeLogging() {
   logging::LoggingSettings settings;
   settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
-  settings.dcheck_state =
-      logging::ENABLE_DCHECK_FOR_NON_OFFICIAL_RELEASE_BUILDS;
   logging::InitLogging(settings);
   // To view log output with IDs and timestamps use "adb logcat -v threadtime".
   logging::SetLogItems(false,    // Process ID