Remove deprecated ShouldSelfOptimize machinery.

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 82412a3b16a0b5ba30672d08adbab1dc805e0f20..ce7a43c5412d8c32ad3584489271540741c396ef 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -276,18 +276,6 @@ Code::Flags CompilationInfo::flags() const {
 }
 
 
-// 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.
-bool CompilationInfo::ShouldSelfOptimize() {
-  return FLAG_crankshaft &&
-      !function()->flags()->Contains(kDontSelfOptimize) &&
-      !function()->dont_optimize() &&
-      function()->scope()->AllowsLazyCompilation() &&
-      (shared_info().is_null() || !shared_info()->optimization_disabled());
-}
-
-
 void CompilationInfo::PrepareForCompilation(Scope* scope) {
   DCHECK(scope_ == NULL);
   scope_ = scope;