Revert "Replace gl::trace logging with Chromium style logging"

Failing Chromium static initializers check:

FAILED linux-release-64/sizes/chrome-si/initializers: actual 8, expected 7, better lower

Possibly due to the static initializer for std::array for
the log severity types. We should change it to POD.

BUG=angleproject:1660

This reverts commit afcc41cee4ff63e7f6c9e60e55fc061adbba7dd4.

Change-Id: Ifb362a4af78542608397c7a0b19e6afe076f2cf3
Reviewed-on: https://chromium-review.googlesource.com/427235
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
diff --git a/src/libANGLE/renderer/d3d/VertexDataManager.cpp b/src/libANGLE/renderer/d3d/VertexDataManager.cpp
index 72329d7..89dd4fa 100644
--- a/src/libANGLE/renderer/d3d/VertexDataManager.cpp
+++ b/src/libANGLE/renderer/d3d/VertexDataManager.cpp
@@ -85,7 +85,7 @@
         auto errorOrElementSize = factory->getVertexSpaceRequired(attrib, 1, 0);
         if (errorOrElementSize.isError())
         {
-            ERR() << "Unlogged error in DirectStoragePossible.";
+            ERR("Unlogged error in DirectStoragePossible.");
             return false;
         }
 
@@ -194,7 +194,7 @@
 
     if (!mStreamingBuffer)
     {
-        ERR() << "Failed to allocate the streaming vertex buffer.";
+        ERR("Failed to allocate the streaming vertex buffer.");
     }
 }