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

src/mips64/macro-assembler-mips64.cc

Index: src/mips64/macro-assembler-mips64.cc
diff --git a/src/mips64/macro-assembler-mips64.cc b/src/mips64/macro-assembler-mips64.cc
index 3c02f9d1436a400732d758d893afeae18fa8fa79..a1d9c41a561f9156cfc484c4278b0ebe8d7fd64c 100644
--- a/src/mips64/macro-assembler-mips64.cc
+++ b/src/mips64/macro-assembler-mips64.cc
@@ -5566,17 +5566,6 @@
 }
 
 
-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()) {