refactor(router): remove pii-encryption-script feature and use of timestamps for decryption (#1350)

crates/router/src/services.rs

@@ -119,7 +119,6 @@ pub struct Store {
     #[cfg(feature = "kv_store")]
     pub(crate) config: StoreConfig,
     pub master_key: Vec<u8>,
-    pub migration_timestamp: i64,
 }
 
 #[cfg(feature = "kv_store")]
@@ -183,7 +182,6 @@ impl Store {
                 drainer_num_partitions: config.drainer.num_partitions,
             },
             master_key: master_enc_key,
-            migration_timestamp: config.secrets.migration_encryption_timestamp,
         }
     }