Delete stale descpb.bin

The generation of this file was disabled in crosreview.com/2075163 but
another in-flight CL crosreview.com/2099564 reintroduced it.

This file hasn't been updated since, and is stale.
+ Add gitignore to avoid future commits of this file (if someone uses
  really old version of the generation script.

BUG=None
TEST=./generate.sh

Change-Id: Ice5e0bd0416bc95695227203337be2e8ed780eef
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2149708
Tested-by: Prathmesh Prabhu <pprabhu@chromium.org>
Auto-Submit: Prathmesh Prabhu <pprabhu@chromium.org>
Reviewed-by: Sean Abraham <seanabraham@chromium.org>
Commit-Queue: Sean Abraham <seanabraham@chromium.org>
diff --git a/.gitignore b/.gitignore
index 0e4042d..44f3a06 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .cipd_bin
+/descpb.bin
 /recipes/.recipe_deps
diff --git a/OWNERS b/OWNERS
index 2e7ae22..a428313 100644
--- a/OWNERS
+++ b/OWNERS
@@ -23,6 +23,5 @@
 # Infra team
 shapiroc@chromium.org
 
-# Allow anyone to update the proto file descriptor.
-per-file descpb.bin=*
+# Allow anyone to update the generated go bindings.
 per-file go/*=*
diff --git a/descpb.bin b/descpb.bin
deleted file mode 100644
index 2334d70..0000000
--- a/descpb.bin
+++ /dev/null
Binary files differ