FIX: couble count of flow_process_nf_total

[bpereto]

I was confused about the latest total processed flow counts - if I interpreting it right, the metric of flow_process_nf_total is counted double for v9 and v10:

goflow2/metrics/producer.go

Line 106 in ee095a9

NetFlowStats.With(

and in the recordCommonNetFlowMetrics function:

goflow2/metrics/decoder.go

Line 89 in ee095a9

NetFlowStats.With(

[lspgn]

Good catch, it's also incremented in recordCommonNetFlowMetrics().

Thank you

[lspgn]

Hello,
I think I prefer removing it from recordCommonNetFlowMetrics in #302, since NetFlow v5 is also emitting the metric in the same function.
Thank you
Will close this one.