Disable ARM64 releases as ARM on Travis is very unreliable

ci/steps/linux-release.sh

@@ -5,19 +5,6 @@ main() {
   cd "$(dirname "$0")/../.."
   source ./ci/lib.sh
 
-  if [[ $(arch) == arm64 ]]; then
-    # This, strangely enough, fixes the arm build being terminated for not having
-    # output on Travis. It's as if output is buffered and only displayed once a
-    # certain amount is collected. Five seconds didn't work but one second seems
-    # to generate enough output to make it work.
-    while true; do
-      echo 'Still running...'
-      sleep 1
-    done &
-    trap "exit" INT TERM
-    trap "kill 0" EXIT
-  fi
-
   ./ci/container/exec.sh ./ci/steps/static-release.sh
   ./ci/container/exec.sh yarn pkg
   ./ci/release-container/push.sh