Remove the comments for Message/Enum/UnknownStorage

Author: thomasvl

Sources/SwiftProtobuf/Enum.swift

@@ -15,8 +15,6 @@
 ///
 // -----------------------------------------------------------------------------
 
-// TODO: `Enum` should require `Sendable` but we cannot do so yet without possibly breaking compatibility.
-
 /// Generated enum types conform to this protocol.
 public protocol Enum: RawRepresentable, Hashable, _ProtoSendable {
   /// Creates a new instance of the enum initialized to its default value.

Sources/SwiftProtobuf/Message.swift

@@ -7,8 +7,6 @@
 // https://github.com/apple/swift-protobuf/blob/main/LICENSE.txt
 //
 
-// TODO: `Message` should require `Sendable` but we cannot do so yet without possibly breaking compatibility.
-
 /// The protocol which all generated protobuf messages implement.
 /// `Message` is the protocol type you should use whenever
 /// you need an argument or variable which holds "some message".

Sources/SwiftProtobuf/UnknownStorage.swift

@@ -16,8 +16,6 @@
 
 import Foundation
 
-// TODO: `UnknownStorage` should be `Sendable` but we cannot do so yet without possibly breaking compatibility.
-
 /// Contains any unknown fields in a decoded message; that is, fields that were
 /// sent on the wire but were not recognized by the generated message
 /// implementation or were valid field numbers but with mismatching wire