beacon-node-builds: drop pushing each commit

Signed-off-by: Jakub Sokołowski <jakub@status.im>

ansible/roles/beacon-node-builds/templates/build.sh.j2

@@ -39,7 +39,6 @@ popd
 # Add binary into a simple Alpine image
 docker build -t "${IMAGE}:${COMMIT_AFTER}" --build-arg=COMMIT=${COMMIT_AFTER} .
 docker tag "${IMAGE}:${COMMIT_AFTER}" "${IMAGE}:${TAG}"
-docker push "${IMAGE}:${COMMIT_AFTER}"
 docker push "${IMAGE}:${TAG}"
 
 echo "SUCCESS - pushed: ${IMAGE}:${TAG}"