Revert "Hard code a DPR of 2.0 in ozone on fnl"

This reverts commit 7f71eaef6e42ae01bb275980dba4f601b4d832bd.

TBR=kulakowski@chromium.org

services/native_viewport/ozone/platform_viewport_ozone.cc

diff --git a/services/native_viewport/ozone/platform_viewport_ozone.cc b/services/native_viewport/ozone/platform_viewport_ozone.cc
index b15a67d..4f23479 100644
--- a/services/native_viewport/ozone/platform_viewport_ozone.cc
+++ b/services/native_viewport/ozone/platform_viewport_ozone.cc
@@ -51,9 +51,6 @@
         ui::OzonePlatform::GetInstance()->CreatePlatformWindow(this, bounds);
 
     metrics_ = mojo::ViewportMetrics::New();
-#if defined(FNL_MUSL)
-    metrics_->device_pixel_ratio = 2.0;
-#endif
     metrics_->size = mojo::Size::From(platform_window_->GetBounds().size());
   }