fix(amqp sink): remove unused feature flag (vectordotdev#18948)

Author: neuronull

src/internal_events/mod.rs

@@ -139,7 +139,7 @@ pub(crate) use mongodb_metrics::*;
 
 #[cfg(feature = "transforms-aggregate")]
 pub(crate) use self::aggregate::*;
-#[cfg(any(feature = "sources-amqp", feature = "sinks-amqp"))]
+#[cfg(feature = "sources-amqp")]
 pub(crate) use self::amqp::*;
 #[cfg(feature = "sources-apache_metrics")]
 pub(crate) use self::apache_metrics::*;