deprecate NPM publishing (#1747)

* deprecate NPM publishing

* remove gitmodules

scripts/travis/release/release-npm.sh

@@ -1,38 +0,0 @@
-#!/usr/bin/env bash
-
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-ROOT=${DIR}/../../..
-DIST=${ROOT}/dist/@alfresco
-
-if [[ $TRAVIS_PULL_REQUEST == "false" ]];
-then
-    TAG_NPM=latest
-    if [[ $TRAVIS_BRANCH == "develop" ]];
-    then
-        TAG_NPM=alpha
-        if [[ $TRAVIS_EVENT_TYPE == "cron" ]];
-        then
-            TAG_NPM=beta
-        fi
-    fi
-fi;
-
-cd $DIST/aca-shared
-
-set -e
-touch .npmrc
-echo 'strict-ssl=false' >> .npmrc
-echo 'registry=http://${NPM_REGISTRY_ADDRESS}' >> .npmrc
-echo '//${NPM_REGISTRY_ADDRESS}/:_authToken="${NPM_REGISTRY_TOKEN}"' >> .npmrc
-
-npm publish
-
-cd $DIST/adf-office-services-ext
-
-set -e
-touch .npmrc
-echo 'strict-ssl=false' >> .npmrc
-echo 'registry=http://${NPM_REGISTRY_ADDRESS}' >> .npmrc
-echo '//${NPM_REGISTRY_ADDRESS}/:_authToken="${NPM_REGISTRY_TOKEN}"' >> .npmrc
-
-npm publish