Can I remove a public IP from a JSON template?

### Issue Details
I'm fairly certain this is obvious - but I'm new to Azure and to GitHub, so apologies in advance because I'm probably not doing this correctly.

I'm trying to create a custom template from a template that I was pointed to by an Azure Support Technician located [here](https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_Azure_azure-2Dquickstart-2Dtemplates_tree_master_101-2Dvm-2Dfrom-2Duser-2Dimage&d=DgMFAg&c=tAAbe3VWSXg4_eMSItYKuRlnp5vCb2OrQZQHnRXk_fc&r=n8fACoSaN9J3-MwdMqeH57SHF374UL11P2bxkwYIJWc&m=1YG9GIWdqW4avjuyDsGLlBnz-RFAjuh87eh6YvqT57U&s=EBFMlpK4XFuTbCAbBZH4m3GE5WgAi4xHXt0WbHt6aac&e=)

I'm trying to edit some fields, names, etc. - most of which are successful, but I can't seem to pull out the Public IP successfully. I've tried everything I can think of and that Google points me to. Of course now that I've said that, it will probably be a super easy fix and I'm just looking too deep.

I've been editing the JSON inside the Azure Portal and it allows me to save it successfully, but when I try to deploy from it I get the following error:

"The request content was invalid and could not be deserialized: 'Required property 'type' not found in JSON. Path 'properties.template.resources[1]', line 1, position 3493.'. (Code: InvalidRequestContent)"

### Repro steps
1. Basically all I have done is pull out all code that referenced anything regarding a public IP.

[azure template.txt](https://github.com/Azure/azure-quickstart-templates/files/637662/azure.template.txt)

Start with the attached azure.template.txt and compare it with the referenced 101-vm-from-user-image template. Inspect properties.template.resources[1] and the remaining public-IP-related resource references, then validate the edited template. Done means the template deploys successfully without a public IP.

Written by the indexing model from the issue text.