Remove unused imports

Author: fabianfett

Diff for: Sources/AsyncHTTPClient/HTTPClient+Proxy.swift

@@ -12,9 +12,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-import NIOCore
-import NIOHTTP1
-
 extension HTTPClient.Configuration {
     /// Proxy server configuration
     /// Specifies the remote address of an HTTP proxy.

Diff for: Sources/AsyncHTTPClient/HTTPClient.swift

@@ -19,7 +19,6 @@ import NIOCore
 import NIOHTTP1
 import NIOHTTPCompression
 import NIOPosix
-import NIOSOCKS
 import NIOSSL
 import NIOTLS
 import NIOTransportServices

Diff for: Sources/AsyncHTTPClient/HTTPHandler.swift

@@ -16,9 +16,7 @@ import Foundation
 import Logging
 import NIOConcurrencyHelpers
 import NIOCore
-import NIOFoundationCompat
 import NIOHTTP1
-import NIOHTTPCompression
 import NIOSSL
 
 extension HTTPClient {

Diff for: Sources/AsyncHTTPClient/Utils.swift

@@ -13,15 +13,7 @@
 //===----------------------------------------------------------------------===//
 
 import Foundation
-#if canImport(Network)
-    import Network
-#endif
-import Logging
 import NIOCore
-import NIOHTTP1
-import NIOHTTPCompression
-import NIOSSL
-import NIOTransportServices
 
 public final class HTTPClientCopyingDelegate: HTTPClientResponseDelegate {
     public typealias Response = Void