remove swift-argument-parser - it was adding well over 1Mb of bloat to release builds

Package.swift

@@ -8,17 +8,7 @@ let package = Package(
     platforms: [
         .macOS("14.2")
     ],
-    dependencies: [
-        .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.3.0")
-    ],
     targets: [
-        // Targets are the basic building blocks of a package, defining a module or a test suite.
-        // Targets can depend on other targets in this package and products from dependencies.
-        .executableTarget(
-            name: "audiotee",
-            dependencies: [
-                .product(name: "ArgumentParser", package: "swift-argument-parser")
-            ]
-        )
+        .executableTarget(name: "audiotee")
     ]
 )