Update default attributes (#15360)

Author: cleptric

includes/logs/default-attributes/core.mdx

@@ -2,6 +2,5 @@
 
 - `environment`: The environment set in the SDK if defined. This is sent from the SDK as `sentry.environment`.
 - `release`: The release set in the SDK if defined. This is sent from the SDK as `sentry.release`.
-- `trace.parent_span_id`: The span ID of the span that was active when the log was collected (only set if there was an active span). This is sent from the SDK as `sentry.trace.parent_span_id`.
 - `sdk.name`: The name of the SDK that sent the log. This is sent from the SDK as `sentry.sdk.name`.
 - `sdk.version`: The version of the SDK that sent the log. This is sent from the SDK as `sentry.sdk.version`.