[AW][Dev-UI] remove OutOfBlinkCors from Dev UI

The kOutOfBlinkCors base::Feature was removed in
https://crrev.com/c/2415752. This removes the corresponding Dev UI
switch since it's obsolete.

Fixed: 1132134
Test: N/A
Change-Id: I314358545fd89ccdcf68a340da671242e4be99c3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2441933
Auto-Submit: Nate Fischer <ntfschr@chromium.org>
Commit-Queue: Takashi Toyoshima <toyoshim@chromium.org>
Reviewed-by: Takashi Toyoshima <toyoshim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812568}

android_webview/java/src/org/chromium/android_webview/common/ProductionSupportedFlagList.java

@@ -64,9 +64,6 @@ public final class ProductionSupportedFlagList {
             Flag.commandLine(GpuSwitches.IGNORE_GPU_BLOCKLIST,
                     "Overrides the built-in software rendering list and enables "
                             + "GPU acceleration on unsupported device configurations."),
-            Flag.baseFeature("OutOfBlinkCors",
-                    "Moves CORS logic into the Network Service (rather than inside the blink "
-                            + "rendering engine)."),
             Flag.baseFeature("EnableSharedImageForWebview", "Enables shared images for WebView."),
             Flag.baseFeature("VizForWebView", "Enables Viz for WebView."),
             Flag.baseFeature(AwFeatures.WEBVIEW_CONNECTIONLESS_SAFE_BROWSING,