Cleanup on Compilation Info.

Removed one function that was needed for code patching during
deoptimization, and one function needed for full code gen.

Bug: v8:6563
Change-Id: Iea0c8a3d374cf315ac4903f4e84a7a2f11563b70
Reviewed-on: https://chromium-review.googlesource.com/649747
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47807}

src/compilation-info.cc

@@ -105,12 +105,6 @@ int CompilationInfo::num_parameters_including_this() const {
 
 bool CompilationInfo::is_this_defined() const { return !IsStub(); }
 
-// Primitive functions are unlikely to be picked up by the stack-walking
-// profiler, so they trigger their own optimization when they're called
-// for the SharedFunctionInfo::kCallsUntilPrimitiveOptimization-th time.
-// TODO(6409) Remove when Full-Codegen dies.
-bool CompilationInfo::ShouldSelfOptimize() { return false; }
-
 void CompilationInfo::set_deferred_handles(
     std::shared_ptr<DeferredHandles> deferred_handles) {
   DCHECK(deferred_handles_.get() == nullptr);

src/compilation-info.h

@@ -180,12 +180,6 @@ class V8_EXPORT_PRIVATE CompilationInfo final {
     osr_frame_ = osr_frame;
   }
 
-  // Deoptimization support.
-  bool ShouldEnsureSpaceForLazyDeopt() { return !IsStub(); }
-
-  // Determines whether or not to insert a self-optimization header.
-  bool ShouldSelfOptimize();
-
   void set_deferred_handles(std::shared_ptr<DeferredHandles> deferred_handles);
   void set_deferred_handles(DeferredHandles* deferred_handles);
   std::shared_ptr<DeferredHandles> deferred_handles() {