adoption: remove duplicate Proton for web

Author: notmandatory

docs/adoption/web.md

@@ -99,21 +99,6 @@ lastUpdated: false
   </div>
 </div>
 
-<!-- Proton Wallet -->
-<div class="project">
-  <div class="project-logo">
-    <a href="https://proton.me/wallet" target="_blank">
-      <img src="/img/case-studies-logos/protonwallet-logo-transparent-130.png" />
-    </a>
-  </div>
-  <div class="tagline">
-    <h3>
-      <a href="https://proton.me/wallet" target="_blank">Proton Wallet</a>
-    </h3>
-    <p>A self-custodial Bitcoin wallet from the makers of Proton Mail.</p>
-  </div>
-</div>
-
 <style>
 .project {
   display: flex;