[compiler] Remove remnants from concurrent OSR.

This removes some obsolete conditions checking whether we are performing
concurrent OSR compilation. This feature has been removed some time ago.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1901163003

Cr-Commit-Position: refs/heads/master@{#35646}

src/compiler.cc

@@ -775,11 +775,7 @@ bool GetOptimizedCodeLater(CompilationInfo* info) {
   if (FLAG_trace_concurrent_recompilation) {
     PrintF("  ** Queued ");
     info->closure()->ShortPrint();
-    if (info->is_osr()) {
-      PrintF(" for concurrent OSR at %d.\n", info->osr_ast_id().ToInt());
-    } else {
-      PrintF(" for concurrent optimization.\n");
-    }
+    PrintF(" for concurrent optimization.\n");
   }
   return true;
 }

src/optimizing-compile-dispatcher.cc

@@ -96,10 +96,8 @@ OptimizedCompileJob* OptimizingCompileDispatcher::NextInput(
   input_queue_length_--;
   if (check_if_flushing) {
     if (static_cast<ModeFlag>(base::Acquire_Load(&mode_)) == FLUSH) {
-      if (!job->info()->is_osr()) {
-        AllowHandleDereference allow_handle_dereference;
-        DisposeOptimizedCompileJob(job, true);
-      }
+      AllowHandleDereference allow_handle_dereference;
+      DisposeOptimizedCompileJob(job, true);
       return NULL;
     }
   }
@@ -134,10 +132,7 @@ void OptimizingCompileDispatcher::FlushOutputQueue(bool restore_function_code) {
       output_queue_.pop();
     }
 
-    // OSR jobs are dealt with separately.
-    if (!job->info()->is_osr()) {
-      DisposeOptimizedCompileJob(job, restore_function_code);
-    }
+    DisposeOptimizedCompileJob(job, restore_function_code);
   }
 }