Remove obsolete parameters from net-internals.

force_spdy_always and force_spdy_over_ssl were obsoleted in
https://crrev.com/1075623002, they should be removed from the net-internals
page.

BUG=480916
R=rch@chromium.org

Review URL: https://codereview.chromium.org/1053613005

Cr-Commit-Position: refs/heads/master@{#327029}

chrome/browser/resources/net_internals/spdy_view.html

@@ -2,8 +2,6 @@
   <ul id=spdy-view-status style='margin-top:0'>
     <li>HTTP/2 Enabled: <span jscontent="spdy_enabled"></span></li>
     <li>Use Alternative Service: <span jscontent="use_alternate_protocols"></span></li>
-    <li>Force HTTP/2 Always: <span jscontent="force_spdy_always"></span></li>
-    <li>Force HTTP/2 Over SSL: <span jscontent="force_spdy_over_ssl"></span></li>
     <li>Next Protocols: <span jscontent="next_protos"></span></li>
   </ul>