Auto-generate a complete NOTICE file.

Remove the hand-collated ones, and switch to a script that pulls the
copyright headers out of every file and collects the unique ones.

Change-Id: Ied3b98b3f56241df97166c410ff81de4e0157c9d
diff --git a/libstdc++/src/one_time_construction.cpp b/libstdc++/src/one_time_construction.cpp
index 3cfb213..8ba18df 100644
--- a/libstdc++/src/one_time_construction.cpp
+++ b/libstdc++/src/one_time_construction.cpp
@@ -1,11 +1,5 @@
 /*
- * one_time_construction.cpp
- *
  * Copyright 2006 The Android Open Source Project
- *
- * This file contains C++ ABI support functions for one time
- * constructors as defined in the "Run-time ABI for the ARM Architecture"
- * section 4.4.2
  */
 
 #include <stddef.h>
@@ -14,6 +8,10 @@
 #include <private/bionic_futex.h>
 #include <private/bionic_atomic_inline.h>
 
+// This file contains C++ ABI support functions for one time
+// constructors as defined in the "Run-time ABI for the ARM Architecture"
+// section 4.4.2
+//
 // ARM C++ ABI and Itanium/x86 C++ ABI has different definition for
 // one time construction:
 //