diff --git a/44.md b/44.md
index da840593..8f840aab 100644
--- a/44.md
+++ b/44.md
@@ -54,40 +54,6 @@ export const utf8Decoder = new TextDecoder()
 
 export const utf8Encoder = new TextEncoder()
 
-export type TLV = {[t: number]: Uint8Array[]}
-
-export function parseTLV(data: Uint8Array): TLV {
-  let result: TLV = {}
-  let rest = data
-  while (rest.length > 0) {
-    let t = rest[0]
-    let l = rest[1]
-    if (!l) throw new Error(`malformed TLV ${t}`)
-    let v = rest.slice(2, 2 + l)
-    rest = rest.slice(2 + l)
-    if (v.length < l) throw new Error(`not enough data to read on TLV ${t}`)
-    result[t] = result[t] || []
-    result[t].push(v)
-  }
-  return result
-}
-
-export function encodeTLV(tlv: TLV): Uint8Array {
-  let entries: Uint8Array[] = []
-
-  Object.entries(tlv).forEach(([t, vs]) => {
-    vs.forEach(v => {
-      let entry = new Uint8Array(v.length + 2)
-      entry.set([parseInt(t)], 0)
-      entry.set([v.length], 1)
-      entry.set(v, 2)
-      entries.push(entry)
-    })
-  })
-
-  return concatBytes(...entries)
-}
-
 export const getSharedSecret = (privkey: string, pubkey: string): Uint8Array =>
   sha256(secp256k1.getSharedSecret(privkey, "02" + pubkey).subarray(1, 33))