* Update include
* Clean up `grpc_empty_slice()`
* Clean up `grpc_slice_malloc()`
* Clean up `grpc_slice_unref()`
* Clean up `grpc_slice_ref()`
* Clean up `grpc_slice_split_tail()`
* Clean up `grpc_slice_split_head()`
* Clean up `grpc_slice_sub()`
* Clean up `grpc_slice_buffer_add()`
* Clean up `grpc_slice_buffer_add_indexed()`
* Clean up `grpc_slice_buffer_pop()`
* Clean up `grpc_slice_from_static_buffer()`
* Clean up `grpc_slice_from_copied_buffer()`
* Clean up `grpc_metadata_array_init()`
* Clean up `grpc_metadata_array_destroy()`
* Clean up `gpr_inf_future()`
* Clean up `gpr_time_0()`
* Clean up `grpc_byte_buffer_copy()`
* Clean up `grpc_byte_buffer_destroy()`
* Clean up `grpc_byte_buffer_length()`
* Clean up `grpc_byte_buffer_reader_init()`
* Clean up `grpc_byte_buffer_reader_destroy()`
* Clean up `grpc_byte_buffer_reader_next()`
* Clean up `grpc_byte_buffer_reader_peek()`
* Clean up `grpc_raw_byte_buffer_create()`
* Clean up `grpc_slice_new_with_user_data()`
* Clean up `grpc_slice_new_with_len()`
* Clean up `grpc_call_start_batch()`
* Clean up `grpc_call_cancel_with_status()`
* Clean up `grpc_call_failed_before_recv_message()`
* Clean up `grpc_call_ref()`
* Clean up `grpc_call_unref()`
* Clean up `grpc_call_error_to_string()`
* Fix typos
* Automated change: Fix sanity tests