don't use x86 native node.js addons in webinos.zip

delete the native node.js modules built by "npm install", so the pre-built
addons for arm are used instead. also fixes webinos.zip to not include
these pre-built modules twice.

Jira-issue: WP-1031
Merge pull request #8 from aldafu/WP-1031-only-use-arm-compiled-node-addons

don't use x86 native node.js addons in webinos.zip