merge: bring the suppressed-reference removal forward from phase-8

transaction-overview.json conflicted only because this branch reordered every
panel, so the diff could not line the two sides up. The incoming side changed
one panel and nothing else, so this keeps every panel and rewrite this branch
made and re-applies that single change in this branch's own style: the receive
panel drops the suppressed grouping, names its series like the other
single-series panels, and says where the duplicate count now lives.

docker/telemetry/grafana/dashboards/transaction-overview.json

@@ -273,8 +273,8 @@
       "id": 5
     },
     {
-      "title": "Transaction Receive vs Suppressed",
-      "description": "###### What this is:\n*Raw transactions received from peers, split by whether they were duplicates suppressed before processing.*\n\n###### How it's computed:\n*Per-second rate of received transactions over the window, split by suppressed flag and node.*\n\n###### Reading it:\n*A large suppressed share is normal, since the same transaction arrives from many peers.*\n\n###### Healthy range:\n*Workload-dependent; suppressed typically exceeds newly processed.*\n\n###### Watch for:\n*A collapse in suppression (duplicate filtering failing) or an overall receive flood.*\n\n###### Keywords:\n- **Transaction suppression** *(per node)* \u2014 dropping a transaction already seen from another peer, so it is not reprocessed.\n\n###### Computation boundary:\n*Result: Per node \u2014 each series is one server's own value.*\n*Recorded in code as a trace span, turned into a metric by the collector (SpanMetrics connector), then aggregated by the Grafana query.*\n\n###### Source:\n[PeerImp.cpp](https://github.com/XRPLF/rippled/blob/develop/src/xrpld/overlay/detail/PeerImp.cpp)\n\n###### Function:\n`PeerImp::handleTransaction`\n\n###### References:\n[Telemetry glossary](https://github.com/XRPLF/rippled/blob/develop/docs/telemetry-glossary.md#transaction-suppression)",
+      "title": "Transaction Receive Rate",
+      "description": "###### What this is:\n*Transactions received from peers that this node went on to process.*\n\n###### How it's computed:\n*Per-second rate of the tx.receive span over the window, per node.*\n\n###### Reading it:\n*Tracks the useful inbound transaction load. Copies dropped as duplicates are not counted, because the span starts after the duplicate check.*\n\n###### Healthy range:\n*Workload-dependent.*\n\n###### Watch for:\n*A fall to zero while peers are connected, meaning inbound relay has stopped.*\n\n###### Keywords:\n- **Transaction suppression** *(per node)* \u2014 dropping a transaction already seen from another peer. Suppressed copies are excluded from this panel; their volume is the transactions_duplicate traffic category.\n\n###### Computation boundary:\n*Result: Per node \u2014 each series is one server's own value.*\n*Recorded in code as a trace span, turned into a metric by the collector (SpanMetrics connector), then aggregated by the Grafana query.*\n\n###### Source:\n[PeerImp.cpp](https://github.com/XRPLF/rippled/blob/develop/src/xrpld/overlay/detail/PeerImp.cpp)\n\n###### Function:\n`PeerImp::handleTransaction`\n\n###### References:\n[Telemetry glossary](https://github.com/XRPLF/rippled/blob/develop/docs/telemetry-glossary.md#transaction-suppression)",
       "type": "timeseries",
       "gridPos": {
         "h": 10,
@@ -295,7 +295,7 @@
             "type": "prometheus",
             "uid": "${DS_PROMETHEUS}"
           },
-          "expr": "label_replace(label_join(label_replace(sum by (suppressed, service_instance_id, xrpl_branch, xrpl_node_role, xrpl_work_item) (rate(span_calls_total{span_name=\"tx.receive\", tx_type=~\"$tx_type\", service_instance_id=~\"$node\", deployment_environment=~\"$deployment_environment\", xrpl_network_type=~\"$xrpl_network_type\", service_name=~\"$service_name\", xrpl_work_item=~\"$xrpl_work_item\", xrpl_branch=~\"$xrpl_branch\", xrpl_node_role=~\"$xrpl_node_role\"}[$__rate_interval])), \"series\", \"Suppressed $1\", \"suppressed\", \"(.*)\"), \"xrpl_ident\", \", \", \"service_instance_id\", \"xrpl_branch\", \"xrpl_work_item\"), \"xrpl_ident\", \"[$1]\", \"xrpl_ident\", \"(?:, )*(.*[^, ])(?:, )*\")"
+          "expr": "label_replace(label_join(label_replace(sum by (service_instance_id, xrpl_branch, xrpl_node_role, xrpl_work_item) (rate(span_calls_total{span_name=\"tx.receive\", tx_type=~\"$tx_type\", service_instance_id=~\"$node\", deployment_environment=~\"$deployment_environment\", xrpl_network_type=~\"$xrpl_network_type\", service_name=~\"$service_name\", xrpl_work_item=~\"$xrpl_work_item\", xrpl_branch=~\"$xrpl_branch\", xrpl_node_role=~\"$xrpl_node_role\"}[$__rate_interval])), \"series\", \"Received / Sec\", \"\", \"\"), \"xrpl_ident\", \", \", \"service_instance_id\", \"xrpl_branch\", \"xrpl_work_item\"), \"xrpl_ident\", \"[$1]\", \"xrpl_ident\", \"(?:, )*(.*[^, ])(?:, )*\")"
         }
       ],
       "fieldConfig": {

docker/telemetry/grafana/provisioning/datasources/tempo.yaml

@@ -206,11 +206,6 @@ datasources:
             operator: "="
             scope: span
             type: dynamic
-          - id: tx-suppressed
-            tag: suppressed
-            operator: "="
-            scope: span
-            type: dynamic
           - id: peer-version
             tag: peer_version
             operator: "="

docker/telemetry/otel-collector-config.yaml

@@ -214,7 +214,6 @@ connectors:
       - name: close_time_correct
       - name: consensus_state
       - name: local
-      - name: suppressed
       - name: proposal_trusted
       - name: validation_trusted
       - name: tx_type