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

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index f24e5e37fdf677fd1233d96c4a1bab3c1a13b9b5..611ed32a9fb11c32c4db724d57f1095e64622fdc 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -5123,17 +5123,6 @@
 }
 
 
-void MacroAssembler::AssertBoundFunction(Register object) {
-  if (emit_debug_code()) {
-    STATIC_ASSERT(kSmiTag == 0);
-    SmiTst(object, t8);
-    Check(ne, kOperandIsASmiAndNotABoundFunction, t8, Operand(zero_reg));
-    GetObjectType(object, t8, t8);
-    Check(eq, kOperandIsNotABoundFunction, t8, Operand(JS_BOUND_FUNCTION_TYPE));
-  }
-}
-
-
 void MacroAssembler::AssertUndefinedOrAllocationSite(Register object,
                                                      Register scratch) {
   if (emit_debug_code()) {