remove usage of the test/test_owners.* files

- remove update_owners.py; seems responsible for generating
test_owners files
- remove the existing test/test_owners.* files
- remove verify-test-owners.sh and references to it

hack/make-rules/verify.sh

@@ -33,7 +33,6 @@ source "${KUBE_ROOT}/third_party/forked/shell2junit/sh2ju.sh"
 EXCLUDED_PATTERNS=(
   "verify-all.sh"                # this script calls the make rule and would cause a loop
   "verify-linkcheck.sh"          # runs in separate Jenkins job once per day due to high network usage
-  "verify-test-owners.sh"        # TODO(rmmh): figure out how to avoid endless conflicts
   "verify-*-dockerized.sh"       # Don't run any scripts that intended to be run dockerized
   "verify-import-aliases.sh"     # to be run periodically by folks working on conformance tests
   )
@@ -78,7 +77,6 @@ QUICK_PATTERNS+=(
   "verify-staging-meta-files.sh"
   "verify-test-featuregates.sh"
   "verify-test-images.sh"
-  "verify-test-owners.sh"
 )
 
 while IFS='' read -r line; do EXCLUDED_CHECKS+=("$line"); done < <(ls "${EXCLUDED_PATTERNS[@]/#/${KUBE_ROOT}\/hack\/}" 2>/dev/null || true)
@@ -192,7 +190,7 @@ function missing-target-checks {
   for v in "${TARGET_LIST[@]}"
   do
     [[ -z "${v}" ]] && continue
-      
+
     FAILED_TESTS+=("${v}")
     ret=1
   done