fix all instances of "the the"

runtime/vm/store_buffer.h

 // Copyright (c) 2012, 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_STORE_BUFFER_H_
 #define VM_STORE_BUFFER_H_
 
 #include "platform/assert.h"
 #include "vm/globals.h"
 
@@ skipping 103 matching lines @@
     Block* PopAll();
    private:
     Block* head_;
     intptr_t length_;
     DISALLOW_COPY_AND_ASSIGN(List);
   };
 
   // Adds and transfers ownership of the block to the buffer.
   void PushBlockImpl(Block* block);
 
-  // If needed, trims the the global cache of empty blocks.
+  // If needed, trims the global cache of empty blocks.
   static void TrimGlobalEmpty();
 
   List full_;
   List partial_;
   Mutex* mutex_;
 
   // Note: This is shared on the basis of block size.
   static const intptr_t kMaxGlobalEmpty = 100;
   static List* global_empty_;
   static Mutex* global_mutex_;
@@ skipping 34 matching lines @@
   // Adds and transfers ownership of the block to the buffer.
   void PushBlock(Block* block) {
     BlockStack<Block::kSize>::PushBlockImpl(block);
   }
 };
 
 
 }  // namespace dart
 
 #endif  // VM_STORE_BUFFER_H_