diff --git a/wasm-ast/src/lib.rs b/wasm-ast/src/lib.rs
index 96401e5..0dd2259 100644
--- a/wasm-ast/src/lib.rs
+++ b/wasm-ast/src/lib.rs
@@ -1,4 +1,3 @@
 pub mod builder;
 pub mod node;
 pub mod visit;
-pub mod writer;
diff --git a/wasm-ast/src/writer.rs b/wasm-ast/src/writer.rs
deleted file mode 100644
index ec5426b..0000000
--- a/wasm-ast/src/writer.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-use std::io::{Result, Write};
-
-use parity_wasm::elements::Module;
-
-pub type Writer<'a> = &'a mut dyn Write;
-
-pub trait Transpiler<'a> {
-	fn new(wasm: &'a Module) -> Self
-	where
-		Self: Sized;
-
-	/// # Errors
-	/// Returns `Err` if writing to `Writer` failed.
-	fn runtime(writer: Writer) -> Result<()>;
-
-	/// # Errors
-	/// Returns `Err` if writing to `Writer` failed.
-	fn transpile(&self, writer: Writer) -> Result<()>;
-}