[receiver/hostmetrics/networkscraper] remove direction

The following change adds the direction to the metric name, removing the `direction` attribute.

Fixes #11817

receiver/hostmetricsreceiver/hostmetrics_receiver_test.go

@@ -58,10 +58,14 @@ var standardMetrics = []string{
 	"system.filesystem.usage",
 	"system.memory.usage",
 	"system.network.connections",
-	"system.network.dropped",
-	"system.network.errors",
-	"system.network.io",
-	"system.network.packets",
+	"system.network.dropped.receive",
+	"system.network.dropped.transmit",
+	"system.network.errors.receive",
+	"system.network.errors.transmit",
+	"system.network.io.receive",
+	"system.network.io.transmit",
+	"system.network.packets.receive",
+	"system.network.packets.transmit",
 	"system.paging.operations",
 	"system.paging.usage",
 }

receiver/hostmetricsreceiver/internal/scraper/networkscraper/documentation.md

@@ -9,10 +9,14 @@ These are the metrics available for this scraper.
 | Name | Description | Unit | Type | Attributes |
 | ---- | ----------- | ---- | ---- | ---------- |
 | **system.network.connections** | The number of connections. | {connections} | Sum(Int) | <ul> <li>protocol</li> <li>state</li> </ul> |
-| **system.network.dropped** | The number of packets dropped. | {packets} | Sum(Int) | <ul> <li>device</li> <li>direction</li> </ul> |
-| **system.network.errors** | The number of errors encountered. | {errors} | Sum(Int) | <ul> <li>device</li> <li>direction</li> </ul> |
-| **system.network.io** | The number of bytes transmitted and received. | By | Sum(Int) | <ul> <li>device</li> <li>direction</li> </ul> |
-| **system.network.packets** | The number of packets transferred. | {packets} | Sum(Int) | <ul> <li>device</li> <li>direction</li> </ul> |
+| **system.network.dropped.receive** | The number of packets dropped on receive. | {packets} | Sum(Int) | <ul> <li>device</li> </ul> |
+| **system.network.dropped.transmit** | The number of packets dropped on transmit. | {packets} | Sum(Int) | <ul> <li>device</li> </ul> |
+| **system.network.errors.receive** | The number of errors encountered on receive. | {errors} | Sum(Int) | <ul> <li>device</li> </ul> |
+| **system.network.errors.transmit** | The number of errors encountered on transmit. | {errors} | Sum(Int) | <ul> <li>device</li> </ul> |
+| **system.network.io.receive** | The number of bytes received. | By | Sum(Int) | <ul> <li>device</li> </ul> |
+| **system.network.io.transmit** | The number of bytes transmitted. | By | Sum(Int) | <ul> <li>device</li> </ul> |
+| **system.network.packets.receive** | The number of packets received. | {packets} | Sum(Int) | <ul> <li>device</li> </ul> |
+| **system.network.packets.transmit** | The number of packets transmitted. | {packets} | Sum(Int) | <ul> <li>device</li> </ul> |
 
 **Highlighted metrics** are emitted by default. Other metrics are optional and not emitted by default.
 Any metric can be enabled or disabled with the following scraper configuration:
@@ -28,6 +32,5 @@ metrics:
 | Name | Description | Values |
 | ---- | ----------- | ------ |
 | device | Name of the network interface. |  |
-| direction | Direction of flow of bytes/operations (receive or transmit). | receive, transmit |
 | protocol | Network protocol, e.g. TCP or UDP. | tcp |
 | state | State of the network connection. |  |