flags: assign instant-tethering

Per email discussion :)

Bug: None
Change-Id: Ifc89b0db4b8525181beadc7facc11805d59251a1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1523607
Auto-Submit: Elly Fong-Jones <ellyjones@chromium.org>
Commit-Queue: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#640818}
diff --git a/chrome/browser/flag-metadata.json b/chrome/browser/flag-metadata.json
index 36d4184..78819f12 100644
--- a/chrome/browser/flag-metadata.json
+++ b/chrome/browser/flag-metadata.json
@@ -2168,8 +2168,8 @@
   },
   {
     "name": "instant-tethering",
-    // "owners": [ "your-team" ],
-    "expiry_milestone": 76
+    "owners": [ "khorimoto" ],
+    "expiry_milestone": 80
   },
   {
     "name": "interest-feed-content-suggestions",