diff --git a/src/lib.rs b/src/lib.rs
index 84f12b0..1cba497 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -4,34 +4,10 @@ mod ser;
 pub(crate) mod attr;
 
 use syn::{
-    parse_macro_input, DeriveInput, Error, Data, Ident, Result,
+    parse_macro_input, DeriveInput, Error, Data,
 };
 use std::convert::From;
 
-#[cfg(test)]
-mod tests {
-    #[test]
-    fn it_works() {
-        assert_eq!(2 + 2, 4);
-    }
-}
-
-#[derive(Debug)]
-pub(crate) struct Variant {
-    ident: Ident,
-    name: Option<String>,
-}
-
-impl From<&syn::Variant> for Variant {
-    fn from(v: &syn::Variant) -> Self {
-        let ident = v.ident.clone();
-        Variant {
-            ident,
-            name: None,
-        }
-    }
-}
-
 #[derive(Debug)]
 enum TagType {
     External,
diff --git a/src/ser.rs b/src/ser.rs
index 62a1ad8..2dc854d 100644
--- a/src/ser.rs
+++ b/src/ser.rs
@@ -3,7 +3,7 @@ use syn::{
     DeriveInput, Result, DataEnum, Error, Fields, FieldsNamed,
 };
 use quote::quote;
-use crate::{Variant, TagType};
+use crate::TagType;
 use crate::attr;
 
 pub fn derive(input: &DeriveInput, enumeration: &DataEnum) -> Result<TokenStream> {
@@ -14,7 +14,6 @@ pub fn derive(input: &DeriveInput, enumeration: &DataEnum) -> Result<TokenStream
         ));
     }
     let ident = &input.ident;
-    let variants: Vec<Variant> = enumeration.variants.iter().map(Into::into).collect();
     let tag_type = attr::tag_type(&input.attrs, &enumeration)?;
     let names = enumeration.variants
         .iter()