Roll Dart SDK from c274ba7 to 3dd1630 (1 revision) (#25432)

Author: skia-flutter-autoroll

DEPS

@@ -35,7 +35,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': 'c274ba72ec739e557bd2e8dc130baa354458408f',
+  'dart_revision': '3dd1630ab4d4144bb6635b25d16e1d2fce565c20',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -188,7 +188,7 @@ deps = {
    Var('dart_git') + '/dart2js_info.git@e0acfeb5affdf94c53067e68bd836adf589628fd',
 
   'src/third_party/dart/third_party/pkg/dartdoc':
-   Var('dart_git') + '/dartdoc.git@e2d010ed74059be942a78ced5f35f1b8d667ed16',
+   Var('dart_git') + '/dartdoc.git@505f163f7cb48e917503e4a23fbff1227e08b263',
 
   'src/third_party/dart/third_party/pkg/ffi':
    Var('dart_git') + '/ffi.git@f3346299c55669cc0db48afae85b8110088bf8da',
@@ -244,9 +244,6 @@ deps = {
   'src/third_party/dart/third_party/pkg/mockito':
    Var('dart_git') + '/mockito.git@d39ac507483b9891165e422ec98d9fb480037c8b',
 
-  'src/third_party/dart/third_party/pkg/mustache':
-   Var('dart_git') + '/external/github.com/xxgreg/mustache@664737ecad027e6b96d0d1e627257efa0e46fcb1',
-
   'src/third_party/dart/third_party/pkg/oauth2':
    Var('dart_git') + '/oauth2.git@7cd3284049fe5badbec9f2bea2afc41d14c01057',
 

ci/licenses_golden/licenses_third_party

@@ -1,4 +1,4 @@
-Signature: 33ad26dbbaeab0bb1f407110c0a915b2
+Signature: 3ced64036aee7965c58dec693c5a4a97
 
 UNUSED LICENSES: