Revert of Mojo: Eliminate duplicate C API symbols

mojo/edk/embedder/embedder.cc

Index: mojo/edk/embedder/embedder.cc
diff --git a/mojo/edk/embedder/embedder.cc b/mojo/edk/embedder/embedder.cc
index 66cc96f82e2e76b6199897f802ec029cd6ef0059..6320365ec11a0a8b2a6334087d5b4ce366291ae2 100644
--- a/mojo/edk/embedder/embedder.cc
+++ b/mojo/edk/embedder/embedder.cc
@@ -15,7 +15,6 @@
 #include "base/task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "mojo/edk/embedder/embedder_internal.h"
-#include "mojo/edk/embedder/entrypoints.h"
 #include "mojo/edk/embedder/platform_channel_pair.h"
 #include "mojo/edk/embedder/process_delegate.h"
 #include "mojo/edk/system/core.h"
@@ -69,10 +68,6 @@
 }
 
 void Init() {
-  MojoSystemThunks thunks = MakeSystemThunks();
-  size_t expected_size = MojoEmbedderSetSystemThunks(&thunks);
-  DCHECK_EQ(expected_size, sizeof(thunks));
-
   internal::g_core = new Core();
 }