Revert "Adds sponsored by Robinhood logo"

This reverts commit 0252652a2055719f5451206330f9107038d3b8c8.

docs/.templates/sidebarintro.html

@@ -1,5 +1,5 @@
 <p class="logo"><a href="{{ pathto(master_doc) }}">
-  <img class="logo" src="https://s3-us-west-1.amazonaws.com/celerydocs/images/celery_128.png" alt="Logo"/>
+  <img class="logo" src="http://cloud.github.com/downloads/celery/celery/celery_128.png" alt="Logo"/>
 </a></p>
 <div id="donate">
     <b>Donations welcome:</b>
@@ -11,8 +11,3 @@
     <img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
     </form>
 </div>
-
-<div id="sponsors">
-    <b>Sponsored by:</b>
-    <img src="https://s3-us-west-1.amazonaws.com/celerydocs/images/robinhood_logotype_green_left.png" />
-</div>

docs/.templates/sidebarlogo.html

@@ -1,5 +1,5 @@
 <p class="logo"><a href="{{ pathto(master_doc) }}">
-  <img class="logo" src="https://s3-us-west-1.amazonaws.com/celerydocs/images/celery_128.png" alt="Logo"/>
+  <img class="logo" src="http://cloud.github.com/downloads/celery/celery/celery_128.png" alt="Logo"/>
 </a></p>
 <div id="donate">
     <b>Donations welcome:</b>
@@ -11,8 +11,3 @@
     <img alt="" border="0" src="https://www.paypalobjects.com/en_US/i/scr/pixel.gif" width="1" height="1">
     </form>
 </div>
-
-<div id="sponsors">
-    <b>Sponsored by:</b>
-    <img src="https://s3-us-west-1.amazonaws.com/celerydocs/images/robinhood_logotype_green_left.png" />
-</div>