[Test] Remove some dead code.

Change-Id: I619a06fecce3d006ab573163a33e01f70d6af9d5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/103180
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>

https://dart.googlesource.com/sdk/+/dc31c4631c499647f0855cd5d1c84aeaf501781b
diff --git a/commits.json b/commits.json
index 3bf20b3..7f76a17 100644
--- a/commits.json
+++ b/commits.json
@@ -1,5 +1,5 @@
 {
   "external/github.com/flutter/engine":"e3772232c2d24c174beac7ef03dff63907cdda46",
   "external/github.com/flutter/flutter":"d0c603d0bbf8898038f620fe47c3552ece07fd65",
-  "sdk":"e2976acd22ea5e55825baa344e7ac1351a5a88b0"
+  "sdk":"dc31c4631c499647f0855cd5d1c84aeaf501781b"
 }
\ No newline at end of file