fixup

Author: tomerd

Sources/Basics/FileSystem+Extensions.swift

@@ -11,7 +11,6 @@
 import class Foundation.FileManager
 import struct Foundation.Data
 import TSCBasic
-import PackageDescription
 
 // MARK: - user level
 
@@ -121,10 +120,7 @@ extension FileSystem {
     }
 
     public func readFileContents(_ path: AbsolutePath) throws -> String {
-        guard let string = try String(data: self.readFileContents(path), encoding: .utf8) else {
-            throw StringError("invalid UTF8 string")
-        }
-        return string
+        return try String(decoding: self.readFileContents(path), as: UTF8.self)
     }
 
     public func writeFileContents(_ path: AbsolutePath, data: Data) throws {