Remove unused external typed data factories.

runtime/vm/os.h

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_OS_H_
 #define VM_OS_H_
 
 #include "vm/globals.h"
 
 // Forward declarations.
@@ skipping 46 matching lines @@
   // Returns the frequency of the monotonic clock.
   static int64_t GetCurrentMonotonicFrequency();
 
   // Returns the value of current thread's CPU usage clock in microseconds.
   // NOTE: This clock will return different values depending on the calling
   // thread. It is only expected to increase in value as the thread uses
   // CPU time.
   // NOTE: This function will return -1 on OSs that are not supported.
   static int64_t GetCurrentThreadCPUMicros();
 
-  // Returns a cleared aligned array of type T with n entries.
-  // Alignment must be >= 16 and a power of two.
-  template<typename T>
-  static T* AllocateAlignedArray(intptr_t n, intptr_t alignment) {
-    T* result = reinterpret_cast<T*>(OS::AlignedAllocate(n * sizeof(*result),
-                                                         alignment));
-    memset(result, 0, n * sizeof(*result));
-    return result;
-  }
-
-  // Returns an aligned pointer in the C heap with room for size bytes.
-  // Alignment must be >= 16 and a power of two.
-  static void* AlignedAllocate(intptr_t size, intptr_t alignment);
-
-  // Frees a pointer returned from AlignedAllocate.
-  static void AlignedFree(void* ptr);
-
   // Returns the activation frame alignment constraint or one if
   // the platform doesn't care. Guaranteed to be a power of two.
   static intptr_t ActivationFrameAlignment();
 
   // This constant is guaranteed to be greater or equal to the
   // preferred code alignment on all platforms.
   static const int kMaxPreferredCodeAlignment = 32;
 
   // Returns the preferred code alignment or zero if
   // the platform doesn't care. Guaranteed to be a power of two.
@@ skipping 73 matching lines @@
   static void Shutdown();
 
   static void Abort();
 
   static void Exit(int code);
 };
 
 }  // namespace dart
 
 #endif  // VM_OS_H_