lint_unittest: drop Python 2 coverage

We're not installing pylint in the SDK anymore, so stop trying to test.

BUG=chromium:1156530
TEST=CQ passes

Change-Id: Ic58262fb183785936fd19b2d0f3569572f87fcc3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/2578168
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
Reviewed-by: Yun-Hao Chung <howardchung@google.com>
diff --git a/cli/cros/lint_unittest b/cli/cros/lint_unittest
deleted file mode 120000
index ef3e37b..0000000
--- a/cli/cros/lint_unittest
+++ /dev/null
@@ -1 +0,0 @@
-../../scripts/wrapper.py
\ No newline at end of file
diff --git a/scripts/run_tests.py b/scripts/run_tests.py
index 82c99dc..90a78f8 100644
--- a/scripts/run_tests.py
+++ b/scripts/run_tests.py
@@ -73,7 +73,6 @@
 # List all exceptions, with a token describing what's odd here.
 SPECIAL_TESTS = {
     # Tests that need to run inside the chroot.
-    'cli/cros/lint_unittest': INSIDE,
     'lib/cros_test_lib_unittest': INSIDE,
     'lib/operation_unittest': INSIDE,