No need for replacements here.

Author: rupertlssmith

scripts/replacements.js

@@ -94,32 +94,6 @@ var string = '';
 \t\t);
 \t}
 \treturn _Utils_Tuple2(offset, string.join(''));
-});`)
-
-    /* Add Bytes encoder/decoder for ports support.
-       Allows Bytes.Bytes to be sent through ports, mapping to Uint8Array on the JS side.
-     */
-    .replace(
-        `var _Json_encodeNull = _Json_wrap(null);`,
-        `var _Json_encodeNull = _Json_wrap(null);
-
-// BYTES FOR PORTS
-var _Json_decodeBytes = _Json_decodePrim(function(value) {
-\tif (value instanceof Uint8Array) {
-\t\treturn $elm$core$Result$Ok(new DataView(value.buffer, value.byteOffset, value.byteLength));
-\t}
-\tif (value instanceof ArrayBuffer) {
-\t\treturn $elm$core$Result$Ok(new DataView(value));
-\t}
-\tif (value instanceof DataView) {
-\t\treturn $elm$core$Result$Ok(value);
-\t}
-\treturn _Json_expecting('a BYTES value (Uint8Array, ArrayBuffer, or DataView)', value);
-});
-
-var _Json_encodeBytes = function(bytes) {
-\treturn _Json_wrap(new Uint8Array(bytes.buffer, bytes.byteOffset, bytes.byteLength));
-};`
-    );
+});`);
 
 fs.writeFileSync(path, data, { encoding: 'utf8', flag: 'w' });