Disable Android e2e tests while we investigate foundational breakage

A `adb: no devices/emulators found` error is occurring and cause every
run to fail. We intend to temporarily disable this job while we
investigate the cause to avoid causing disruptions or confusion for
contributors.

.github/workflows/rnmobile-android-runner.yml

@@ -1,9 +1,10 @@
 name: React Native E2E Tests (Android)
 
+# Triggers disabled while we investigate a foundational error is causing all runs
+# to fail
 on:
-    pull_request:
     push:
-        branches: [trunk]
+        branches: []
 
 # Cancels all previous workflow runs for pull requests that have not completed.
 concurrency: