fix(attachments): Remove unused imports

Co-Authored-By: Matt Quinn <354504+mjq@users.noreply.github.com>

Author: sentry-junior[bot]

relay-server/src/processing/trace_attachments/store.rs

@@ -2,15 +2,15 @@ use std::collections::HashMap;
 
 use chrono::{DateTime, Utc};
 use relay_event_schema::protocol::{Attributes, SpanId, TraceAttachmentMeta};
-use relay_protocol::{Annotated, IntoValue, Value};
+use relay_protocol::{Annotated, Value};
 use relay_quotas::Scoping;
 use sentry_protos::snuba::v1::{AnyValue, TraceItem, TraceItemType, any_value};
 
 use crate::managed::{Counted, Managed, Quantities, Rejected};
 use crate::processing::Retention;
 use crate::processing::trace_attachments::types::ExpandedAttachment;
 use crate::processing::utils::store::{
-    AttributeMeta, extract_client_sample_rate, extract_meta_attributes, proto_timestamp,
+    extract_client_sample_rate, extract_meta_attributes, proto_timestamp,
     quantities_to_trace_item_outcomes, uuid_to_item_id,
 };
 use crate::services::objectstore::StoreTraceAttachment;