Revert "Add Smi::Zero and replace all Smi::FromInt(0) calls"

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index c72f6f6b405599e3170b93b21c7cae1768027d6c..8317a06aa22b5bad9e35296ae02037cef0e44d54 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -151,8 +151,6 @@ UNINITIALIZED_TEST(InitializeAndDisposeMultiple) {
   for (int i = 0; i < 3; ++i) CHECK(v8::V8::Dispose());
 }
 
-// Tests that Smi::kZero is set up properly.
-UNINITIALIZED_TEST(SmiZero) { CHECK_EQ(i::Smi::kZero, i::Smi::kZero); }
 
 THREADED_TEST(Handles) {
   v8::HandleScope scope(CcTest::isolate());