make version of ts_mon compatible with appengine

infra_libs/ts_mon/config.proto

Index: infra_libs/ts_mon/config.proto
diff --git a/infra_libs/ts_mon/config.proto b/infra_libs/ts_mon/config.proto
deleted file mode 100644
index e7c13388c6bb0e4faa7c8d0c7859e1367eab5153..0000000000000000000000000000000000000000
--- a/infra_libs/ts_mon/config.proto
+++ /dev/null
@@ -1,13 +0,0 @@
-syntax = "proto3";

[agable, 2015/08/10 23:04:37]

This file should still be here. This is demonstrating the format that a ts_mon
configuration proto should take, so it should live here to document that format.

-
-// ts_mon's config file in /etc/chrome-infra/ts-mon.json is a JSON-encoded
-// ConfigFile message.
-// Note: this .proto file isn't currently used to encode/decode the config file,
-// it's just here as a reference.
-message ConfigFile {
-  // Url to post monitoring metrics to.  file:// URLs are supported as well.
-  string endpoint = 1;
-
-  // Path to a pkcs8 json credential file.
-  string credentials = 2;
-}