             throw ManifestParseError.invalidEncoding
         }
 
-        return (json, interpreterFlags)
+        return json
     }
 
     /// Returns path to the sdk, if possible.

    private func parse(
        path manifestPath: AbsolutePath,
        manifestVersion: ManifestVersion
    ) throws -> (jsonString: String, interpreterFlags: [String]) {
        // The compiler has special meaning for files with extensions like .ll, .bc etc.
        // Assert that we only try to load files with extension .swift to avoid unexpected loading behavior.
        assert(manifestPath.extension == "swift",

                manifestVersion: manifestVersion)
        }

        // Get the json from manifest.
        let jsonString = try parse(path: inputPath, manifestVersion: manifestVersion)
        let json = try JSON(string: jsonString)

        // Load the manifest from JSON.
        let manifestBuilder = try ManifestBuilder(v4: json, baseURL: baseURL)
