diff --git a/src/archive/zip.ts b/src/archive/zip.ts
index 6d93dc8..17a6eaf 100644
--- a/src/archive/zip.ts
+++ b/src/archive/zip.ts
@@ -8,7 +8,6 @@ import {Archive, Entry, IEntryInfo} from '../archive';
 import {PathType} from '../types';
 import {
 	streamToBuffer,
-	streamToReadable,
 	zipEfaToUnixMode,
 	zipPathIsMacResource,
 	zipPathTypeFromEfaAndPath
@@ -27,17 +26,15 @@ const yauzlEntryRead = async (zipfile: yauzl.ZipFile, entry: yauzl.Entry) => {
 		return null;
 	}
 
-	return streamToReadable(
-		await new Promise<Readable>((resolve, reject) => {
-			zipfile.openReadStream(entry, (err, stream) => {
-				if (err) {
-					reject(err);
-					return;
-				}
-				resolve(stream);
-			});
-		})
-	);
+	return new Promise<Readable>((resolve, reject) => {
+		zipfile.openReadStream(entry, (err, stream) => {
+			if (err) {
+				reject(err);
+				return;
+			}
+			resolve(stream);
+		});
+	});
 };
 
 /**
diff --git a/src/util.ts b/src/util.ts
index b89a006..6439afa 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -250,56 +250,6 @@ export async function streamReadEnd(
 	});
 }
 
-/**
- * Create readable stream from another readable stream.
- * Useful for converting an active stream into an pending stream.
- *
- * @param stream Readable-compatible stream.
- * @returns Readable stream.
- */
-export function streamToReadable(stream: Readable) {
-	// Pause stream, resumed only when needed.
-	stream.pause();
-
-	// Create readable.
-	const r = new Readable({
-		/**
-		 * Read method.
-		 */
-		read: () => {
-			stream.resume();
-		}
-	});
-
-	// Forward data and end.
-	stream.on('data', d => {
-		r.push(d);
-		stream.pause();
-	});
-	stream.on('end', () => {
-		r.push(null);
-	});
-
-	// Forward errors both ways.
-	const errorsA = new Set<Error>();
-	const errorsB = new Set<Error>();
-	stream.on('error', err => {
-		if (errorsA.has(err)) {
-			return;
-		}
-		errorsA.add(err);
-		r.emit('error', err);
-	});
-	r.on('error', err => {
-		if (errorsB.has(err)) {
-			return;
-		}
-		errorsB.add(err);
-		stream.emit('error', err);
-	});
-	return r;
-}
-
 /**
  * Wrapper for lchmod, does nothing on unsupported platforms.
  *