CLA: Remove use of cla-check.php template

This refers to the theme template at:
https://github.com/jquery/jquery-wp-content/blob/bd3069d7b0e555b5922c2589825323b0dc349a7b/themes/contribute.jquery.org/cla-check.php

... which in turn depends on JQUERY_CLA_SERVER_URL,
which refers to the former cla.jquery.net website.

I deleted `/CLA/status*` since that has been a server-side redirect
in recent years, and thus wasn't actually exposed:
https://github.com/jquery/infrastructure-puppet/blob/37b52a9ee3683882bf1f41519b16b053d14bb60a/hieradata/common.yaml#L142

Ref jquery/infrastructure-puppet#12

Author: Krinkle

pages/CAA.md

@@ -1,7 +1,13 @@
 <script>{
-	"title": "jQuery Foundation Copyright Assignment Agreement"
+	"title": "CLA for corporate contributors"
 }</script>
 
+<h2 id="moved">Moved</h2>
+
+Moved to <https://cla.openjsf.org>.
+
+<h2 id="caa">jQuery Foundation Copyright Assignment Agreement</h2>
+
 For good and valuable consideration, receipt of which I acknowledge, I hereby
 transfer to jQuery Foundation, Inc. (the "Foundation") my entire right, title,
 and interest (including all rights under copyright) in my changes and enhancements
@@ -55,9 +61,3 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE).
 
 Please complete the following information and press Submit below to indicate
 your agreement.
-
-<h2 id="signelectronically">Sign Electronically</h2>
-
-<iframe src="https://docs.google.com/forms/d/1Glak4tfXzuVOe6db1iu2W2XIwEhPdEYLm3fr561hJfw/viewform?embedded=true#start=embed"
-	width="760" height="500" frameborder="0" marginheight="0" marginwidth="0">
-	Loading...</iframe>

pages/CLA.md

@@ -2,49 +2,4 @@
 	"title": "Individual Contributor License Agreement v3.0"
 }</script>
 
-Thank you for Your interest in the jQuery Foundation. This document clarifies the terms under which You, the person listed below, may make Contributions — which may include without limitation, software, bug fixes, configuration changes, documentation, or any other materials — to any of the projects owned or managed by the jQuery Foundation.
-
-Please complete the following information about You and the Contributions. If You have questions about these terms, please contact us at [email protected].
-
-You accept and agree to the following terms and conditions for Your present and future Contributions submitted to the jQuery Foundation. Except for the license granted herein to the jQuery Foundation, You reserve all right, title, and interest in and to Your Contributions.
-
-### Licenses
-
-jQuery Foundation projects (code, documentation, and any other materials) are each released under the terms of the individual licenses as noted in the project's repository, or, if no separate license is specified, under the terms of the [MIT license](https://tldrlegal.com/license/mit-license), with the following exception:
-
-Copyright and related rights for sample code as defined in the project's LICENSE.txt file are waived via [CC0](https://tldrlegal.com/l/cc0-1.0). Rights to any change to existing sample code or contribution of new code denoted as sample code as defined in the project's LICENSE.txt file are waived via CC0.
-
-### You certify that:
-
-(a) Your Contributions are created in whole or in part by You and You have the right to submit it under the designated license; or
-
-(b) Your Contributions are based upon previous work that, to the best of your knowledge, is covered under an appropriate open source license and You have the right under that license to submit that work with modifications, whether created in whole or in part by You, under the designated license; or
-
-(c) Your Contributions are provided directly to You by some other person who certified (a) or (b) and You have not modified them.
-
-(d) You understand and agree that the jQuery Foundation projects and Your Contributions are public and that a record of the Contributions (including all metadata and personal information You submit with them) is maintained indefinitely and may be redistributed consistent with the jQuery Foundation's policies and the requirements of the MIT license where they are relevant.
-
-(e) You are granting Your Contributions to the jQuery Foundation under the terms of the license as noted in the project's repository or if not specified, either the MIT open source license or the CC0 as applicable.
-Please complete the following information and press Submit below to indicate
-your agreement. All fields are required.
-
-## Sign Electronically
-
-<form method="POST" action="https://spreadsheets.google.com/spreadsheet/formResponse?formkey=dFJucXdGZXlRdVh2SUVUb2hsb0FBYkE6MQ&theme=0AX42CRMsmRFbUy1kN2NjY2Y0Mi1iYWFmLTQxMWMtYjM0NC04NmZmYTIwZDRkMGQ&embedded=true&ifq" class="top-labels">
-	<div class="note">The name and email address used to sign the CLA must match the name and email address in your git config. The author information for each commit in your Contributions will be cross-checked with this signature.</div>
-
-	<label for="fullname">Full name
-		<input type="text" id="fullname" name="entry.2.single" required>
-	</label>
-
-	<label for="email">Email address
-		<input type="email" id="email" name="entry.4.single" required pattern=".+@.+\..+">
-	</label>
-
-	<label for="agree">Confirmation
-		<div class="field-description">Please type "I AGREE" below to indicate you agree to these terms. Your full name and email address will be publicly available.</div>
-		<input type="text" id="agree" name="entry.7.single" required pattern="I AGREE">
-	</label>
-
-	<input type="submit" name="submit" value="Submit">
-</form>
+Moved to <https://cla.openjsf.org>.