[ddc] Turning down unsound testing on canary (6)

Stop running co19 suite on the ddc-canary-linux-chrome bot.
Cleanup temporary skips from status file.

These changes are staged across multiple CLs to avoid crashing
the infra when too many tests status changes need to be uploaded
at the same time.

Change-Id: I378954fc0cbb47c0f54edf158b3b7c38744bf0b8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/379525
Reviewed-by: Kevin Moore <kevmoo@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>
diff --git a/tests/co19/co19-dartdevc.status b/tests/co19/co19-dartdevc.status
index 0dff317..e011d17 100644
--- a/tests/co19/co19-dartdevc.status
+++ b/tests/co19/co19-dartdevc.status
@@ -103,11 +103,6 @@
 LibTest/typed_data/Uint32List/setRange_A06_t02: SkipByDesign # 64-bit int not supported on the web
 LibTest/typed_data/Uint64List/*: SkipByDesign # Uint64List not supported on the web
 
-[ $builder_tag == canary && $compiler == ddc && $nnbd == weak ]
-Language/*: Skip # Temporary skip while turning down unsound test suites
-LanguageFeatures/*: Skip # Temporary skip while turning down unsound test suites
-LibTest/*: Skip # Temporary skip while turning down unsound test suites
-
 [ $compiler == ddc && $runtime == chrome ]
 LibTest/html/Window/animationFrame_A01_t01: SkipByDesign # Issue #53985: requestAnimationFrame is not executed on Chrome inactive tabs
 
diff --git a/tools/bots/test_matrix.json b/tools/bots/test_matrix.json
index 869882c..0d81473 100644
--- a/tools/bots/test_matrix.json
+++ b/tools/bots/test_matrix.json
@@ -2063,15 +2063,6 @@
           "fileset": "js_platform"
         },
         {
-          "name": "ddc co19 tests unsound",
-          "arguments": [
-            "-nddc-canary-linux-chrome-unsound",
-            "co19"
-          ],
-          "shards": 6,
-          "fileset": "js_platform"
-        },
-        {
           "name": "ddc modular tests",
           "script": "out/ReleaseX64/dart-sdk/bin/dart",
           "testRunner": true,