DOCSP-40220 edits (#1411)

Author: norareidy

index.html

@@ -46,7 +46,7 @@ <h2>MongoDB Java Drivers</h2>
       <p>
         The next generation Java drivers for MongoDB
       </p>
-      <p><a href="./5.1" class="btn btn-success btn-dark btn-mongo">Latest documentation</a>
+      <p><a href="./5.0" class="btn btn-success btn-dark btn-mongo">Latest documentation</a>
       </p>
 
     </div>
@@ -88,9 +88,6 @@ <h2>Releases</h2>
   <table class="table table-striped">
     <thead><tr><th>Release</th><th>Documentation</th></tr></thead>
     <tbody><tr>
-        <th class="current">5.1.0</th>
-        <td><a href="./5.1" class="reference">Reference</a> &#124; <a href="./5.1/apidocs">API</a></td>
-      </tr><tr>
         <th class="current">5.0.0</th>
         <td><a href="./5.0" class="reference">Reference</a> &#124; <a href="./5.0/apidocs">API</a></td>
       </tr><tr>

mongo-java-driver/index.html

@@ -46,7 +46,7 @@ <h2>MongoDB Java Drivers</h2>
       <p>
         The next generation Java drivers for MongoDB
       </p>
-      <p><a href="./5.1" class="btn btn-success btn-dark btn-mongo">Latest documentation</a>
+      <p><a href="./5.0" class="btn btn-success btn-dark btn-mongo">Latest documentation</a>
       </p>
 
     </div>
@@ -88,9 +88,6 @@ <h2>Releases</h2>
   <table class="table table-striped">
     <thead><tr><th>Release</th><th>Documentation</th></tr></thead>
     <tbody><tr>
-        <th class="current">5.1.0</th>
-        <td><a href="./5.1" class="reference">Reference</a> &#124; <a href="./5.1/apidocs">API</a></td>
-      </tr><tr>
         <th class="current">5.0.0</th>
         <td><a href="./5.0" class="reference">Reference</a> &#124; <a href="./5.0/apidocs">API</a></td>
       </tr><tr>