Merge pull request #13127 from dgquintas/exclude_epollex_from_lb_tests_for_now

Disable epollex for LB tests while failures are investigated
diff --git a/build.yaml b/build.yaml
index d43d36f..592cbb9 100644
--- a/build.yaml
+++ b/build.yaml
@@ -3958,6 +3958,7 @@
   excluded_poll_engines:
   - poll
   - poll-cv
+  - epollex
 - name: codegen_test_full
   gtest: true
   build: test
@@ -4266,6 +4267,7 @@
   excluded_poll_engines:
   - poll
   - poll-cv
+  - epollex
 - name: h2_ssl_cert_test
   gtest: true
   build: test
diff --git a/tools/run_tests/generated/tests.json b/tools/run_tests/generated/tests.json
index 15d38eb..3b1b658 100644
--- a/tools/run_tests/generated/tests.json
+++ b/tools/run_tests/generated/tests.json
@@ -3547,7 +3547,8 @@
     "exclude_iomgrs": [], 
     "excluded_poll_engines": [
       "poll", 
-      "poll-cv"
+      "poll-cv", 
+      "epollex"
     ], 
     "flaky": false, 
     "gtest": true, 
@@ -3941,7 +3942,8 @@
     "exclude_iomgrs": [], 
     "excluded_poll_engines": [
       "poll", 
-      "poll-cv"
+      "poll-cv", 
+      "epollex"
     ], 
     "flaky": false, 
     "gtest": false,