remove redundant information about Vanadium config

static/build.html

@@ -674,11 +674,6 @@ cd ../..</pre>
             Chromium's Android build instructions</a> for details on obtaining the
             prerequisites.</p>
 
-            <p>You can obtain the proper configuration from the
-            <a href="https://github.com/GrapheneOS/Vanadium">
-            GrapheneOS Vanadium repository</a> in <code>args.gn</code> including the correct
-            version.</p>
-
             <pre>git clone https://github.com/GrapheneOS/Vanadium.git
 cd Vanadium
 git checkout $CORRECT_BRANCH_OR_TAG</pre>