Fixed crash upon clicking media prim (disabled prim media control floater for now). Fleshed out media browser replacement (LLFloaterWebContent).

indra/newview/app_settings/settings.xml

@@ -2247,17 +2247,6 @@ This should be as low as possible, but too low may break functionality</string>
       <key>Value</key>
       <integer>1</integer>
     </map>
-    <key>AudioStreamingVideo</key>
-    <map>
-      <key>Comment</key>
-      <string>Enable streaming video</string>
-      <key>Persist</key>
-      <integer>1</integer>
-      <key>Type</key>
-      <string>Boolean</string>
-      <key>Value</key>
-      <integer>0</integer>
-    </map>
     <key>AuditTexture</key>
     <map>
       <key>Comment</key>