Revert "[DDS] Make runDartDevelopmentServiceFromCLI use IPv6 to serve DDS if either the VM Service address or the bind address cannot be resolved to an IPv4 address"

This reverts commit 4391ca6643b67688ae1bfdedafc7e054833af4e7.

Reason for revert: breaks internal tests

Original change's description:
> [DDS] Make runDartDevelopmentServiceFromCLI use IPv6 to serve DDS if either the VM Service address or the bind address cannot be resolved to an IPv4 address
>
> TEST=CI
>
> Fixes: https://github.com/dart-lang/sdk/issues/56557
> Change-Id: Id06532aedf26d8d5e4d037df72dece2d6550e694
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/389521
> Reviewed-by: Ben Konyi <bkonyi@google.com>
> Commit-Queue: Derek Xu <derekx@google.com>

Change-Id: I02709235d32abab122b5269a5d80f12c4085988b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/390542
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Derek Xu <derekx@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>

https://dart.googlesource.com/sdk/+/cec29f1306da181c0d12db5c02f7eedcb91e18b8
diff --git a/DEPS b/DEPS
index 395b733..709e498 100644
--- a/DEPS
+++ b/DEPS
@@ -281,7 +281,7 @@
 
   'engine/src/flutter': Var('flutter_git') + '/mirrors/engine' + '@' + 'f12e0d385f4d64765ed46c7c3ac8fa7fa8bc3c43',
 
-  'engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + '8b1fab0c8dde954407a331a43307b2bf91fcdce8',
+  'engine/src/flutter/third_party/dart': Var('dart_git') + '/sdk' + '@' + 'cec29f1306da181c0d12db5c02f7eedcb91e18b8',
 
   'flutter': Var('flutter_git') + '/mirrors/flutter' + '@' + 'b397ee3297e46adabc28a91c3fc76cd2c34c213f',
 
diff --git a/commits.json b/commits.json
index 9f423f5..a012060 100644
--- a/commits.json
+++ b/commits.json
@@ -1,5 +1,5 @@
 {
   "engine/src/flutter":"f12e0d385f4d64765ed46c7c3ac8fa7fa8bc3c43",
-  "engine/src/flutter/third_party/dart":"8b1fab0c8dde954407a331a43307b2bf91fcdce8",
+  "engine/src/flutter/third_party/dart":"cec29f1306da181c0d12db5c02f7eedcb91e18b8",
   "flutter":"b397ee3297e46adabc28a91c3fc76cd2c34c213f"
 }
\ No newline at end of file