trace: remove unused variable.
@@ -102,7 +102,6 @@ int flb_trace_chunk_input(struct flb_trace_chunk *trace, char *buf, int buf_size
msgpack_packer mp_pck;
msgpack_sbuffer mp_sbuf;
struct flb_input_instance *input = (struct flb_input_instance *)trace->ic->in;
- struct flb_output_instance *output = (struct flb_output_instance *)input->trace_ctxt->output;
int rc = -1;
int slen;
flb_sds_t tag = flb_sds_create("trace");
