Delete unused file

It wasn't even being built.

Change-Id: I32540060a57380f91096c23b03df9c876cd5923b
diff --git a/aos/scoped/scoped_ptr.h b/aos/scoped/scoped_ptr.h
deleted file mode 100644
index 336e73b..0000000
--- a/aos/scoped/scoped_ptr.h
+++ /dev/null
@@ -1,43 +0,0 @@
-#ifndef AOS_SCOPED_PTR_H_
-#define AOS_SCOPED_PTR_H_
-
-#include "aos/macros.h"
-
-namespace aos {
-
-// A simple scoped_ptr implementation that works under both linux and vxworks.
-template<typename T>
-class scoped_ptr {
- public:
-  typedef T element_type;
-  
-  explicit scoped_ptr(T *p = NULL) : p_(p) {}
-  ~scoped_ptr() {
-    delete p_;
-  }
-
-  T &operator*() const { return *p_; }
-  T *operator->() const { return p_; }
-  T *get() const { return p_; }
-
-  operator bool() const { return p_ != NULL; }
-
-  void swap(scoped_ptr<T> &other) {
-    T *temp = other.p_;
-    other.p_ = p_;
-    p_ = other.p_;
-  }
-  void reset(T *p = NULL) {
-    if (p_ != NULL) delete p_;
-    p_ = p;
-  }
-
- private:
-  T *p_;
-
-  DISALLOW_COPY_AND_ASSIGN(scoped_ptr<T>);
-};
-
-}  // namespace aos
-
-#endif  // AOS_SCOPED_PTR_H_