dotfiles/zshrc: remove node_modules/bin

Don't need this anymore since we've moved on to DSpace 7 everywhere.

dotfiles/zshrc

@@ -27,11 +27,6 @@ compinit
 if [[ "$OSTYPE" =~ ^linux.*$ ]]; then
     PATH=~/.local/bin:$PATH
 
-    # System Node.js with local "global" package prefix, for DSpace build environment:
-    #  $ npm config set prefix ~/.node_modules
-    #  $ npm install -g bower grunt grunt-cli
-    PATH=$PATH:~/.node_modules/bin
-
     {%@@ if profile == "knafeh" or profile == "balozi" @@%}
     # Export these variables in our TTY so that Sway can read them when it
     # starts. It's not pretty, but it's all we can do since support for