Reinstate targets that no longer fail tests

This change reinstates targets that were marked as KTF over the past year, but are now succeeding.

Differential Revision: https://phabricator.twitter.biz/D1214058

Author: jdm-twtr

mysql-client/src/test/scala/com/twitter/finatra/mysql/client/tests/BUILD.bazel

@@ -3,10 +3,7 @@ junit_tests(
     compiler_option_sets = ["fatal_warnings"],
     platform = "java8",
     strict_deps = True,
-    tags = [
-        "bazel-compatible",
-        "known-to-fail-jira:CSL-12422",
-    ],
+    tags = ["bazel-compatible"],
     dependencies = [
         "3rdparty/jvm/com/github/ben-manes/caffeine",
         "3rdparty/jvm/org/slf4j:slf4j-simple",