Revert of [builtins] Unify the various versions of [[Call]] with a Call builtin.

src/x64/macro-assembler-x64.h

Index: src/x64/macro-assembler-x64.h
diff --git a/src/x64/macro-assembler-x64.h b/src/x64/macro-assembler-x64.h
index cce88d8cc7f2b7ba25a8e064cc23508881c986e6..63feb828407b11f8c39bfeda27bceeb898d5824a 100644
--- a/src/x64/macro-assembler-x64.h
+++ b/src/x64/macro-assembler-x64.h
@@ -148,21 +148,6 @@
   void CompareRoot(const Operand& with, Heap::RootListIndex index);
   void PushRoot(Heap::RootListIndex index);
 
-  // Compare the object in a register to a value and jump if they are equal.
-  void JumpIfRoot(Register with, Heap::RootListIndex index, Label* if_equal,
-                  Label::Distance if_equal_distance = Label::kNear) {
-    CompareRoot(with, index);
-    j(equal, if_equal, if_equal_distance);
-  }
-
-  // Compare the object in a register to a value and jump if they are not equal.
-  void JumpIfNotRoot(Register with, Heap::RootListIndex index,
-                     Label* if_not_equal,
-                     Label::Distance if_not_equal_distance = Label::kNear) {
-    CompareRoot(with, index);
-    j(not_equal, if_not_equal, if_not_equal_distance);
-  }
-
   // These functions do not arrange the registers in any particular order so
   // they are not useful for calls that can cause a GC.  The caller can
   // exclude up to 3 registers that do not need to be saved and restored.
@@ -1116,9 +1101,6 @@
   // Abort execution if argument is not a name, enabled via --debug-code.
   void AssertName(Register object);
 
-  // Abort execution if argument is not a JSFunction, enabled via --debug-code.
-  void AssertFunction(Register object);
-
   // Abort execution if argument is not undefined or an AllocationSite, enabled
   // via --debug-code.
   void AssertUndefinedOrAllocationSite(Register object);
@@ -1270,9 +1252,6 @@
 
   // Find the function context up the context chain.
   void LoadContext(Register dst, int context_chain_length);
-
-  // Load the global proxy from the current context.
-  void LoadGlobalProxy(Register dst);
 
   // Conditionally load the cached Array transitioned map of type
   // transitioned_kind from the native context if the map in register