[sheriff] Revert "WebShare: Enabled for Android in runtime_enabled_features.json5"

This reverts commit bee04852.

Reason for revert: culprit for WebView test failures in https://crbug.com/1122996

Original change's description:
> WebShare: Enabled for Android in runtime_enabled_features.json5
>
> runtime_enabled_features.json5 previously only had a comment indicating
> WebShare is shipped on Android.
>
> Change-Id: I9eac95bfb77aef8154cd637a089b528568a7c38f
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2379422
> Commit-Queue: Kentaro Hara <haraken@chromium.org>
> Auto-Submit: Eric Willigers <ericwilligers@chromium.org>
> Reviewed-by: Kentaro Hara <haraken@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#802542}

TBR=ericwilligers@chromium.org,haraken@chromium.org

Bug: 1122996
Change-Id: I0ecf0b8df2a23825214188f7d3c16d531269c99f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2379920
Commit-Queue: Alex Ilin <alexilin@chromium.org>
Reviewed-by: Alex Ilin <alexilin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#802653}

chrome/renderer/chrome_content_renderer_client.cc

@@ -1495,6 +1495,8 @@ void ChromeContentRendererClient::
   // Mojo implementation (e.g. WebView).  Web Share is shipped on Android.
 #if defined(OS_CHROMEOS) || defined(OS_WIN)
   if (base::FeatureList::IsEnabled(features::kWebShare))
+#endif
+#if defined(OS_CHROMEOS) || defined(OS_WIN) || defined(OS_ANDROID)
     blink::WebRuntimeFeatures::EnableWebShare(true);
 #endif
 

third_party/blink/renderer/platform/runtime_enabled_features.json5

@@ -2085,9 +2085,10 @@
       origin_trial_feature_name: "WebScheduler",
       status: "experimental",
     },
+    // WebShare is enabled by default on Android.
     {
       name: "WebShare",
-      status:  {"Android": "stable", "default": "test"},
+      status: "test",
     },
     {
       name: "WebSocketStream",