Use jquery 3.5.1

[qqmyers]

What this PR does / why we need it: Per the issue, Primefaces 10 uses 3.5.1 by default, but having a 3.4.1 version in our source tree overrides that. So this PR removes it.

Which issue(s) this PR closes:

Closes #8068

Special notes for your reviewer:

Suggestions on how to test this: Look for the jquery files used in the webpage, e.g. looking in the browser dev console network tab, and open them in a separate window to verify that the version shown in the source is 3.5.1. The change could potentially break UI functionality (anywhere we or PrimeFaces uses jquery) but I'd expect 3.5.1 would if anything work better than having us override to 3.4.1 (since PrimeFaces ships with it.)

Does this PR introduce a user interface change? If mockups are available, please link/include them here: no

Is there a release notes update needed for this change?: no?

Additional documentation:

[donsizemore]

Removing jquery.js per @qqmyers' instructions renders the following on the 5.6 release:

I can create a collection and dataset, but haven't tested much beyond that.

[pdurbin]

I haven't done any testing but this seems like a nice, easy fix, and simple to revert if we need to.

@donsizemore already commented that simply removing the 3.4.1 version from a server worked.

As of this writing, if you go to https://demo.dataverse.org/javax.faces.resource/jquery/jquery.js.xhtml?ln=primefaces&v=10.0.0 it will show "3.4.1". Once you remove the file, it shows the version Primefaces provides (3.5.1).

So it's all much more maintainable.

The last thing I'll mention is that in pull request #6079 both Bootstrap and jQuery were updated to an identical version (3.4.1). I know we want to upgrade to Bootstrap 4 in #6045 but meanwhile I don't know if it's crucial to keep Bootstrap and jQuery versions in sync.