Revert of Migrate FastCloneShallowObjectStub to TurboFan

src/compiler/code-stub-assembler.h

Index: src/compiler/code-stub-assembler.h
diff --git a/src/compiler/code-stub-assembler.h b/src/compiler/code-stub-assembler.h
index 95bd7e06ebeffe9ee1428152a8403cf8a2d37054..9fcb8906069e3895040575e2e5a1a3ce13a8377a 100644
--- a/src/compiler/code-stub-assembler.h
+++ b/src/compiler/code-stub-assembler.h
@@ -303,10 +303,6 @@
   // Load a field from an object on the heap.
   Node* LoadObjectField(Node* object, int offset,
                         MachineType rep = MachineType::AnyTagged());
-  // Store a field to an object on the heap.
-  Node* StoreObjectFieldNoWriteBarrier(
-      Node* object, int offset, Node* value,
-      MachineRepresentation rep = MachineRepresentation::kTagged);
   // Load the floating point value of a HeapNumber.
   Node* LoadHeapNumberValue(Node* object);
   // Store the floating point value of a HeapNumber.
@@ -326,8 +322,6 @@
 
   // Load the hash field of a name.
   Node* LoadNameHash(Node* name);
-  // Load the instance size of a Map.
-  Node* LoadMapInstanceSize(Node* map);
 
   // Load an array element from a FixedArray.
   Node* LoadFixedArrayElementInt32Index(Node* object, Node* int32_index,
@@ -342,7 +336,6 @@
   Node* AllocateHeapNumber();
   // Allocate a HeapNumber with a specific value.
   Node* AllocateHeapNumberWithValue(Node* value);
-  Node* InnerAllocate(Node* previous, int offset);
 
   // Store an array element to a FixedArray.
   Node* StoreFixedArrayElementNoWriteBarrier(Node* object, Node* index,