Revert of [runtime] Introduce dedicated JSBoundFunction to represent bound functions.

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index cddd640786386b2556cc39a89b18d23dd1717482..b6bd41d8f428a91771a3a1dcb5f0e1896ad95559 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -817,18 +817,6 @@
     CmpObjectType(object, JS_FUNCTION_TYPE, object);
     Pop(object);
     Check(equal, kOperandIsNotAFunction);
-  }
-}
-
-
-void MacroAssembler::AssertBoundFunction(Register object) {
-  if (emit_debug_code()) {
-    test(object, Immediate(kSmiTagMask));
-    Check(not_equal, kOperandIsASmiAndNotABoundFunction);
-    Push(object);
-    CmpObjectType(object, JS_BOUND_FUNCTION_TYPE, object);
-    Pop(object);
-    Check(equal, kOperandIsNotABoundFunction);
   }
 }