docs: remove unsupported attributes from docs (#146)

Author: jimmyjames

docs/OpenTelemetry.md

@@ -26,12 +26,10 @@ In cases when metrics events are sent, they will not be viewable outside of infr
 | `fga-client.request.store_id`  | string | Yes                | Store ID that was sent as part of the request                                     |
 | `fga-client.response.model_id` | string | Yes                | Authorization model ID that the FGA server used                                   |
 | `fga-client.user`              | string | No                 | User associated with the action of the request for check and list users           |
-| `http.client.request.duration` | int    | No                 | Duration for the SDK to complete the request, in milliseconds                     |
-| `http.host`                    | string | Yes                | Host identifier of the origin the request was sent to                              |
+| `http.host`                    | string | Yes                | Host identifier of the origin the request was sent to                             |
 | `http.request.method`          | string | Yes                | HTTP method for the request                                                       |
 | `http.request.resend_count`    | int    | Yes                | Number of retries attempted, if any                                               |
 | `http.response.status_code`    | int    | Yes                | Status code of the response (e.g., `200` for success)                             |
-| `http.server.request.duration` | int    | No                 | Time taken by the FGA server to process and evaluate the request, in milliseconds |
 | `url.scheme`                   | string | Yes                | HTTP scheme of the request (`http`/`https`)                                       |
 | `url.full`                     | string | Yes                | Full URL of the request                                                           |
 | `user_agent.original`          | string | Yes                | User Agent used in the query                                                      |
@@ -79,7 +77,7 @@ public class Example {
                 .put(ServiceAttributes.SERVICE_NAME, "example-app")
                 .put(ServiceAttributes.SERVICE_VERSION, "0.1.0")
                 .build();
-
+    
         SdkMeterProvider sdkMeterProvider = SdkMeterProvider.builder()
             .registerMetricReader(PeriodicMetricReader.builder(OtlpGrpcMetricExporter.builder().build()).build())
             .setResource(resource)