|  | @@ -72,10 +72,6 @@ struct grpc_channel {
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				|  |  |  };
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				|  |  |  
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				|  |  |  #define CHANNEL_STACK_FROM_CHANNEL(c) ((grpc_channel_stack*)((c) + 1))
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				|  |  | -#define CHANNEL_FROM_CHANNEL_STACK(channel_stack) \
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				|  |  | -  (((grpc_channel*)(channel_stack)) - 1)
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				|  |  | -#define CHANNEL_FROM_TOP_ELEM(top_elem) \
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				|  |  | -  CHANNEL_FROM_CHANNEL_STACK(grpc_channel_stack_from_top_element(top_elem))
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				|  |  |  
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				|  |  |  static void destroy_channel(void* arg, grpc_error* error);
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				|  |  |  
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