Partially revert "Optimize function across closures."

src/hydrogen-instructions.h

Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 3e16f97bd945b0304d07be2fd7a922e68a9d86d4..1752c44d1fb9096b58042c0ad3694e41affb7740 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -6171,18 +6171,6 @@ class HObjectAccess FINAL {
                          SharedFunctionInfo::kOptimizedCodeMapOffset);
   }
 
-  static HObjectAccess ForCompileHint() {
-// Compile hints are stored in the upper half of a pseudo-smi, which for
-// 64-bit means that the representation is an integer.
-#if V8_HOST_ARCH_32_BIT
-    Representation repr = Representation::Smi();
-#else
-    Representation repr = Representation::Integer32();
-#endif
-    return HObjectAccess(kInobject, SharedFunctionInfo::kCompilerHintsOffset,
-                         repr);
-  }
-
   static HObjectAccess ForFunctionContextPointer() {
     return HObjectAccess(kInobject, JSFunction::kContextOffset);
   }