Remove unnecessary 'late' from _SingleProcessMacroExecutor.

Change-Id: I0fbb206b837831630af9771d7cd368ce14c2c5aa
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/241140
Reviewed-by: Jake Macdonald <jakemac@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
diff --git a/pkg/_fe_analyzer_shared/lib/src/macros/executor/process_executor.dart b/pkg/_fe_analyzer_shared/lib/src/macros/executor/process_executor.dart
index 7205ecd..01d4004 100644
--- a/pkg/_fe_analyzer_shared/lib/src/macros/executor/process_executor.dart
+++ b/pkg/_fe_analyzer_shared/lib/src/macros/executor/process_executor.dart
@@ -55,7 +55,7 @@
       SerializationMode serializationMode,
       String programPath,
       List<String> arguments) async {
-    late ServerSocket serverSocket;
+    ServerSocket serverSocket;
     // Try an ipv6 address loopback first, and fall back on ipv4.
     try {
       serverSocket = await ServerSocket.bind(InternetAddress.loopbackIPv6, 0);