Remove deprecated methods TaskTraits::WithFileIO()/WithWait().

base/task_scheduler/task_traits.h

Index: base/task_scheduler/task_traits.h
diff --git a/base/task_scheduler/task_traits.h b/base/task_scheduler/task_traits.h
index 26937b91f97753887cbb41ba8460fec0d7a4c18c..4859ee9251c00bbb809855f729c0b28ba94c0122 100644
--- a/base/task_scheduler/task_traits.h
+++ b/base/task_scheduler/task_traits.h
@@ -122,14 +122,6 @@ class BASE_EXPORT TaskTraits {
   // in tasks that may block (per MayBlock()'s definition).
   TaskTraits& WithSyncPrimitives();
 
-  // DEPRECATED
-  // TODO(fdoray): Remove this as part of crbug.com/675660
-  TaskTraits& WithFileIO();
-
-  // DEPRECATED
-  // TODO(fdoray): Remove this as part of crbug.com/675660
-  TaskTraits& WithWait();
-
   // Applies |priority| to tasks with these traits.
   TaskTraits& WithPriority(TaskPriority priority);