Remove EncryptedMediaAnyVersion runtime flag (status=stable)

Source/web/WebRuntimeFeatures.cpp

Index: Source/web/WebRuntimeFeatures.cpp
diff --git a/Source/web/WebRuntimeFeatures.cpp b/Source/web/WebRuntimeFeatures.cpp
index 3329954f3d186e58301a9c8ae1b3653507215976..1cdde1bbf6074d6790841f00ccf8b2cfedd57825 100644
--- a/Source/web/WebRuntimeFeatures.cpp
+++ b/Source/web/WebRuntimeFeatures.cpp
@@ -72,10 +72,6 @@ void WebRuntimeFeatures::enableDisplayList2dCanvas(bool enable)
 void WebRuntimeFeatures::enableEncryptedMedia(bool enable)
 {
     RuntimeEnabledFeatures::setEncryptedMediaEnabled(enable);
-    // FIXME: Hack to allow MediaKeyError to be enabled for either version.
-    RuntimeEnabledFeatures::setEncryptedMediaAnyVersionEnabled(
-        RuntimeEnabledFeatures::encryptedMediaEnabled()
-        || RuntimeEnabledFeatures::prefixedEncryptedMediaEnabled());
 }
 
 bool WebRuntimeFeatures::isEncryptedMediaEnabled()
@@ -86,10 +82,6 @@ bool WebRuntimeFeatures::isEncryptedMediaEnabled()
 void WebRuntimeFeatures::enablePrefixedEncryptedMedia(bool enable)
 {
     RuntimeEnabledFeatures::setPrefixedEncryptedMediaEnabled(enable);
-    // FIXME: Hack to allow MediaKeyError to be enabled for either version.
-    RuntimeEnabledFeatures::setEncryptedMediaAnyVersionEnabled(
-        RuntimeEnabledFeatures::encryptedMediaEnabled()
-        || RuntimeEnabledFeatures::prefixedEncryptedMediaEnabled());
 }
 
 bool WebRuntimeFeatures::isPrefixedEncryptedMediaEnabled()