revert Package.swift to upstream state

Author: ktoso

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:6.1
+// swift-tools-version:5.10
 //===----------------------------------------------------------------------===//
 //
 // This source file is part of the AsyncHTTPClient open source project
@@ -35,16 +35,9 @@ let strictConcurrencySettings: [SwiftSetting] = {
 
 let package = Package(
     name: "async-http-client",
-    platforms: [ // FIXME: must remove this
-        .macOS("10.15")
-    ],
     products: [
         .library(name: "AsyncHTTPClient", targets: ["AsyncHTTPClient"])
     ],
-    traits: [
-        .trait(name: "TracingSupport"),
-        .default(enabledTraits: ["TracingSupport"]),
-    ],
     dependencies: [
         .package(url: "https://github.com/apple/swift-nio.git", from: "2.81.0"),
         .package(url: "https://github.com/apple/swift-nio-ssl.git", from: "2.30.0"),
@@ -54,7 +47,6 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-log.git", from: "1.6.0"),
         .package(url: "https://github.com/apple/swift-atomics.git", from: "1.0.2"),
         .package(url: "https://github.com/apple/swift-algorithms.git", from: "1.0.0"),
-        .package(url: "https://github.com/apple/swift-distributed-tracing.git", from: "1.2.0"),
     ],
     targets: [
         .target(
@@ -81,8 +73,6 @@ let package = Package(
                 .product(name: "Logging", package: "swift-log"),
                 .product(name: "Atomics", package: "swift-atomics"),
                 .product(name: "Algorithms", package: "swift-algorithms"),
-                // Observability support
-                .product(name: "Tracing", package: "swift-distributed-tracing", condition: .when(traits: ["TracingSupport"])),
             ],
             swiftSettings: strictConcurrencySettings
         ),
@@ -128,4 +118,4 @@ for target in package.targets {
         ()  // we don't know what to do here, do nothing
     }
 }
-// --- END: STANDARD CROSS-REPO SETTINGS DO NOT EDIT --- //
+// --- END: STANDARD CROSS-REPO SETTINGS DO NOT EDIT --- //