bisect-kit: remove workaround for tiny stateful

With recent quick-provision and new cros flash, tiny stateful partition
should be no longer an issue.

BUG=b:160458394
TEST=None

Change-Id: I36917c676f067d9cc93afb5b531fca1a03296b9b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/bisect-kit/+/2850394
Tested-by: Kuang-che Wu <kcwu@chromium.org>
Auto-Submit: Kuang-che Wu <kcwu@chromium.org>
Commit-Queue: Zheng-Jie Chang <zjchang@chromium.org>
Reviewed-by: Zheng-Jie Chang <zjchang@chromium.org>
diff --git a/cros_helper.py b/cros_helper.py
index 76aeb39..5cee155 100755
--- a/cros_helper.py
+++ b/cros_helper.py
@@ -25,9 +25,6 @@
 
 models_to_avoid = {
     # model: reason
-    'kasumi': 'b/160458394 stateful partition is too small',
-    'mimrock': 'b/160458394 stateful partition is too small',
-    'vorticon': 'b/160458394 stateful partition is too small',
 }