Drop ACP maintenance/no-modes caveat sentence

Removes the 'ACP does not define its own access modes. The ACP draft
has not been revised since 2022 and has no public test suite or Security
and Privacy Considerations section.' sentence from the ACP paragraph,
keeping the description focused on capabilities only.

Author: jeswr

solid26.html

@@ -385,7 +385,7 @@ <h3>Solid Protocol</h3>
                         The Solid Protocol requires Servers to conform to Web Access Control (<a href="#web-access-control">WAC</a>), Access Control Policy (<a href="#access-control-policy">ACP</a>), or both, and requires Clients to conform to both. In practice, Clients typically conform to one. A Client that conforms to only one and needs to read or write access-control rules will not interoperate with a Server that implements only the language the Client does not support; Clients that do not interact with access-control rules are unaffected. Implementers choosing between the two should consider the requirements satisfied by each.
                       </p>
                       <p>WAC is pragmatic, user-friendly, and extensible. WAC 1.0 does not support deny or non-additive policy composition, application-aware matching beyond Origin, or issuer matching; application-aware matching, issuer matching, and other conditional grants land as <code>acl:condition</code> in <a href="https://web.archive.org/web/20260425225256/https://solid.github.io/web-access-control-spec/">WAC 1.1 ED</a>, with no implementations known at the time of publication.</p>
-                      <p>ACP is expressive. It supports allow and deny rules (deny overrides allow), application-aware (<code>acp:client</code>) and issuer (<code>acp:issuer</code>) matching, verifiable-credential matching (<code>acp:vc</code>), and policy composition via <code>acp:allOf</code> / <code>acp:anyOf</code> / <code>acp:noneOf</code>. ACP does not define its own access modes. The ACP draft has not been revised since 2022 and has no public test suite or Security and Privacy Considerations section.</p>
+                      <p>ACP is expressive. It supports allow and deny rules (deny overrides allow), application-aware (<code>acp:client</code>) and issuer (<code>acp:issuer</code>) matching, verifiable-credential matching (<code>acp:vc</code>), and policy composition via <code>acp:allOf</code> / <code>acp:anyOf</code> / <code>acp:noneOf</code>.</p>
                       <div class="note" id="note-survey">
                         <h4><span>Note</span></h4>
                         <p>The <a href="https://lists.w3.org/Archives/Public/public-solid/2026Mar/0019.html">March 2026 implementation survey</a> (<a href="https://github.com/w3c-cg/solid/blob/main/implementations/wac-acp.2026-04-01.csv">data</a>, <a href="https://web.archive.org/web/20260415092405/https://raw.githubusercontent.com/w3c-cg/solid/64d2c5383976b9e3a51f854576245dbb4bda1ce1/implementations/wac-acp.2026-04-01.csv">archived</a>):</p>