Bug 1314803 - Remove supportsHardwareH264 from about:support r=mattwoodrow

toolkit/content/aboutSupport.js

@@ -375,7 +375,6 @@ var snapshotFormatters = {
            : localizedMsg(["apzNone"]));
     addRowFromKey("features", "webglRenderer");
     addRowFromKey("features", "webgl2Renderer");
-    addRowFromKey("features", "supportsHardwareH264", "hardwareH264");
     addRowFromKey("features", "currentAudioBackend", "audioBackend");
     addRowFromKey("features", "direct2DEnabled", "#Direct2D");
 

toolkit/modules/Troubleshoot.jsm

@@ -352,12 +352,6 @@ var dataProviders = {
     let winUtils = Services.wm.getMostRecentWindow("").
                    QueryInterface(Ci.nsIInterfaceRequestor).
                    getInterface(Ci.nsIDOMWindowUtils)
-    data.supportsHardwareH264 = "Unknown";
-    let promise = winUtils.supportsHardwareH264Decoding;
-    promise.then(function(v) {
-      data.supportsHardwareH264 = v;
-    });
-    promises.push(promise);
 
     data.currentAudioBackend = winUtils.currentAudioBackend;
 

toolkit/modules/tests/browser/browser_Troubleshoot.js

@@ -225,9 +225,6 @@ const SNAPSHOT_SCHEMA = {
         windowLayerManagerRemote: {
           type: "boolean",
         },
-        supportsHardwareH264: {
-          type: "string",
-        },
         currentAudioBackend: {
           type: "string",
         },