[turbofan] Remove support for LazyBailout operators.

src/compiler/linkage.cc

Index: src/compiler/linkage.cc
diff --git a/src/compiler/linkage.cc b/src/compiler/linkage.cc
index 48a1bb45376c236739c26434bdddd1ecff298ddd..d4a366563a1180a137bf688f7ad823a0d1cb660c 100644
--- a/src/compiler/linkage.cc
+++ b/src/compiler/linkage.cc
@@ -63,9 +63,6 @@ std::ostream& operator<<(std::ostream& os, const CallDescriptor::Kind& k) {
     case CallDescriptor::kCallAddress:
       os << "Addr";
       break;
-    case CallDescriptor::kLazyBailout:
-      os << "LazyBail";
-      break;
   }
   return os;
 }
@@ -282,31 +279,6 @@ CallDescriptor* Linkage::GetRuntimeCallDescriptor(
 }
 
 
-CallDescriptor* Linkage::GetLazyBailoutDescriptor(Zone* zone) {
-  const size_t return_count = 0;
-  const size_t parameter_count = 0;
-
-  LocationSignature::Builder locations(zone, return_count, parameter_count);
-  MachineSignature::Builder types(zone, return_count, parameter_count);
-
-  // The target is ignored, but we need to give some values here.
-  MachineType target_type = MachineType::AnyTagged();
-  LinkageLocation target_loc = regloc(kJSFunctionRegister);
-  return new (zone) CallDescriptor(      // --
-      CallDescriptor::kLazyBailout,      // kind
-      target_type,                       // target MachineType
-      target_loc,                        // target location
-      types.Build(),                     // machine_sig
-      locations.Build(),                 // location_sig
-      0,                                 // stack_parameter_count
-      Operator::kNoThrow,                // properties
-      kNoCalleeSaved,                    // callee-saved
-      kNoCalleeSaved,                    // callee-saved fp
-      CallDescriptor::kNeedsFrameState,  // flags
-      "lazy-bailout");
-}
-
-
 CallDescriptor* Linkage::GetJSCallDescriptor(Zone* zone, bool is_osr,
                                              int js_parameter_count,
                                              CallDescriptor::Flags flags) {