Remove Persistent/PersistableStorage

fontbe/src/avar.rs

@@ -5,10 +5,9 @@ use fontdrasil::{
     orchestration::{Access, Work},
     types::Axis,
 };
-use fontir::orchestration::{Persistable, WorkId as FeWorkId};
+use fontir::orchestration::WorkId as FeWorkId;
 use log::debug;
 use write_fonts::{
-    read::FontRead,
     tables::avar::{Avar, AxisValueMap, SegmentMaps},
     types::F2Dot14,
 };
@@ -28,26 +27,6 @@ pub enum PossiblyEmptyAvar {
     Empty,
 }
 
-impl Persistable for PossiblyEmptyAvar {
-    fn read(from: &mut dyn std::io::Read) -> Self {
-        let mut bytes = Vec::new();
-        from.read_to_end(&mut bytes).unwrap();
-        if bytes.is_empty() {
-            Self::Empty
-        } else {
-            let table =
-                FontRead::read(bytes.as_slice().into()).expect("we wrote it, we can write it");
-            Self::NonEmpty(table)
-        }
-    }
-
-    fn write(&self, to: &mut dyn std::io::Write) {
-        if let Self::NonEmpty(table) = self {
-            table.write(to);
-        }
-    }
-}
-
 impl PossiblyEmptyAvar {
     pub fn as_ref(&self) -> Option<&Avar> {
         match self {

fontbe/src/features.rs

@@ -666,14 +666,7 @@ impl Work<Context, AnyWorkId, Error> for FeatureCompilationWork {
 
         // Enables the assumption that if the file exists features were compiled
         if context.flags.contains(Flags::EMIT_IR) {
-            fs::write(
-                context
-                    .persistent_storage
-                    .paths
-                    .target_file(&WorkId::Features),
-                "1",
-            )
-            .map_err(Error::IoError)?;
+            fs::write(context.paths.target_file(&WorkId::Features), "1").map_err(Error::IoError)?;
         }
         Ok(())
     }