Revert of [tests] Make assertOptimized()/assertUnoptimized() great again.

src/runtime/runtime.h

Index: src/runtime/runtime.h
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index 1fcac99591ba0bf06654c004c4674892c1ddd6f3..2df020b6159862b62d6054962dff675153574f84 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -1154,18 +1154,6 @@
 STATIC_ASSERT(LANGUAGE_END == 2);
 class DeclareGlobalsLanguageMode : public BitField<LanguageMode, 2, 1> {};
 
-// A set of bits returned by Runtime_GetOptimizationStatus.
-// These bits must be in sync with bits defined in test/mjsunit/mjsunit.js
-enum class OptimizationStatus {
-  kIsFunction = 1 << 0,
-  kNeverOptimize = 1 << 1,
-  kAlwaysOptimize = 1 << 2,
-  kMaybeDeopted = 1 << 3,
-  kOptimized = 1 << 4,
-  kTurboFanned = 1 << 5,
-  kInterpreted = 1 << 6,
-};
-
 }  // namespace internal
 }  // namespace v8