Remove Github Packages publish step (#43453) (#43493)

(cherry picked from commit 59e153cde8)

Co-authored-by: Dimitris Sotirakis <dimitrios.sotirakis@grafana.com>

scripts/build/release-npm-packages.sh

@@ -52,15 +52,6 @@ if [ $RELEASE_CHANNEL == "latest" ]; then
   done
 fi
 
-# Publish to Github Packages registry
-# We do this for the convenience of developers that make use of both the canary and next / latest channels.
-
-echo "@grafana:registry=https://npm.pkg.github.com" >> ~/.npmrc
-echo "//npm.pkg.github.com/:_authToken=${GITHUB_PACKAGE_TOKEN}" >> ~/.npmrc
-
-echo $'\nPublishing packages to Github Packages registry'
-yarn packages:${SCRIPT} --registry https://npm.pkg.github.com
-
 # When releasing stable(latest) version of packages we are updating previously published next tag(beta) to be the same version as latest
 if [ $RELEASE_CHANNEL == "latest" ]; then
   for i in "${PACKAGES[@]}"