diff --git a/crates/fayalite/src/vendor/lattice.rs b/crates/fayalite/src/vendor/lattice.rs
index 79f69a6..ec989e6 100644
--- a/crates/fayalite/src/vendor/lattice.rs
+++ b/crates/fayalite/src/vendor/lattice.rs
@@ -16,23 +16,6 @@ pub mod orangecrab;
 pub mod primitives;
 pub mod yosys_nextpnr;
 
-/* must be removed later */
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
-pub struct XdcIOStandardAnnotation {
-    pub value: Interned<str>,
-}
-
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
-pub struct XdcLocationAnnotation {
-    pub location: Interned<str>,
-}
-
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
-pub struct XdcCreateClockAnnotation {
-    /// clock period in nanoseconds
-    pub period: NotNan<f64>,
-}
-
 /* fixme make_annotation_enum! {
     #[non_exhaustive]
     pub enum LatticeAnnotation {
diff --git a/crates/fayalite/src/vendor/lattice/orangecrab.rs b/crates/fayalite/src/vendor/lattice/orangecrab.rs
index 0a6515a..37829c9 100644
--- a/crates/fayalite/src/vendor/lattice/orangecrab.rs
+++ b/crates/fayalite/src/vendor/lattice/orangecrab.rs
@@ -11,7 +11,7 @@ use crate::{
     },
     prelude::*,
     vendor::lattice::{
-        Device, XdcCreateClockAnnotation, XdcIOStandardAnnotation, XdcLocationAnnotation,
+        Device,
         primitives,
     },
 };
diff --git a/crates/fayalite/src/vendor/lattice/yosys_nextpnr.rs b/crates/fayalite/src/vendor/lattice/yosys_nextpnr.rs
index 90e4795..a6dd2b4 100644
--- a/crates/fayalite/src/vendor/lattice/yosys_nextpnr.rs
+++ b/crates/fayalite/src/vendor/lattice/yosys_nextpnr.rs
@@ -24,7 +24,7 @@ use crate::{
     source_location::SourceLocation,
     util::{HashSet, job_server::AcquiredJob},
     vendor::lattice::{
-        Device, XdcCreateClockAnnotation, XdcIOStandardAnnotation, XdcLocationAnnotation,
+        Device,
         /* fixme LatticeAnnotation,*/ LatticeArgs,
     },
 };