Ensure nightly and master builds with an alpha build version are tagged dev (#6231)

scripts/publish_npm.sh

@@ -23,10 +23,6 @@ if [[ "${TRAVIS_PUBLISH_PACKAGES:-}" == "true" ]]; then
     # If the package doesn't have an alpha tag, use the tag of latest instead of
     # dev. NPM uses this tag as the default version to add, so we want it to mean
     # the newest released version.
-    if [[ "${PKG_VERSION}" != *-beta* ]]; then
-        NPM_TAG="beta"
-    fi
-
     if [[ "${PKG_VERSION}" != *-alpha* ]]; then
         NPM_TAG="latest"
     fi