Remove outdated protos
diff --git a/build.json b/build.json
index f784388..a17df3c 100644
--- a/build.json
+++ b/build.json
@@ -615,7 +615,7 @@
     },
     {
       "name": "pubsub_client_lib",
-      "build": "private",
+      "build": "do_not_build",
       "language": "c++",
       "src": [
         "examples/pubsub/label.proto",
@@ -2002,7 +2002,7 @@
     },
     {
       "name": "pubsub_client",
-      "build": "test",
+      "build": "do_not_build",
       "run": false,
       "language": "c++",
       "src": [
@@ -2019,7 +2019,7 @@
     },
     {
       "name": "pubsub_publisher_test",
-      "build": "test",
+      "build": "do_not_build",
       "language": "c++",
       "src": [
         "examples/pubsub/publisher_test.cc"
@@ -2036,7 +2036,7 @@
     },
     {
       "name": "pubsub_subscriber_test",
-      "build": "test",
+      "build": "do_not_build",
       "language": "c++",
       "src": [
         "examples/pubsub/subscriber_test.cc"