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

src/arm64/macro-assembler-arm64.cc

Index: src/arm64/macro-assembler-arm64.cc
diff --git a/src/arm64/macro-assembler-arm64.cc b/src/arm64/macro-assembler-arm64.cc
index 819f2973e2309fbeb94c5728b88ca5e9565b927d..32c5a8b3ff6dbc23bbbb6bcb4fb6a2f55ade5d3f 100644
--- a/src/arm64/macro-assembler-arm64.cc
+++ b/src/arm64/macro-assembler-arm64.cc
@@ -1626,19 +1626,6 @@
 }
 
 
-void MacroAssembler::AssertBoundFunction(Register object) {
-  if (emit_debug_code()) {
-    AssertNotSmi(object, kOperandIsASmiAndNotABoundFunction);
-
-    UseScratchRegisterScope temps(this);
-    Register temp = temps.AcquireX();
-
-    CompareObjectType(object, temp, temp, JS_BOUND_FUNCTION_TYPE);
-    Check(eq, kOperandIsNotABoundFunction);
-  }
-}
-
-
 void MacroAssembler::AssertUndefinedOrAllocationSite(Register object,
                                                      Register scratch) {
   if (emit_debug_code()) {