Remove swiftly update message from swiftly run command (swiftlang#401)

* Remove swiftly update message from swiftly run command * Make validateSwiftly result discardable

Author: cmcgee1024

Sources/Swiftly/Run.swift

@@ -58,10 +58,8 @@ struct Run: SwiftlyCommand {
  }
 
  mutating func run(_ ctx: SwiftlyCoreContext) async throws {
- let versionUpdateReminder = try await validateSwiftly(ctx)
- defer {
- versionUpdateReminder()
- }
+ try await validateSwiftly(ctx)
+
  var config = try await Config.load(ctx)
 
  // Handle the specific case where help is requested of the run subcommand

Sources/Swiftly/SelfUpdate.swift

@@ -29,7 +29,7 @@ struct SelfUpdate: SwiftlyCommand {
  }
 
  mutating func run(_ ctx: SwiftlyCoreContext) async throws {
- let _ = try await validateSwiftly(ctx)
+ try await validateSwiftly(ctx)
 
  let swiftlyBin = Swiftly.currentPlatform.swiftlyBinDir(ctx) / "swiftly"
  guard try await fs.exists(atPath: swiftlyBin) else {

Sources/Swiftly/Swiftly.swift

@@ -95,6 +95,7 @@ extension Data {
 }
 
 extension SwiftlyCommand {
+ @discardableResult
  public mutating func validateSwiftly(_ ctx: SwiftlyCoreContext) async throws -> () -> Void {
  for requiredDir in Swiftly.requiredDirectories(ctx) {
  guard try await fs.exists(atPath: requiredDir) else {