Revert "Enable full testing of CSSReducedFontLoadingLayoutInvalidations"

This reverts commit 5aba5002.

Reason for revert: Causing crbug.com/1092431

Let's stop messing up the perf bots while debugging.

Original change's description:
> Enable full testing of CSSReducedFontLoadingLayoutInvalidations
> 
> This is preparation for enabling finch experiments of the feature on M85
> 
> Note: though M85 hasn't reached Beta, we'd like to have it covered by
> test bots first to catch any breakage. We'd also like it to be tested
> by perf bots, since this "feature" is a performance optimization.
> 
> Bug: 441925
> Change-Id: I3ef98ffcfa960381efd034cd1cd63e55fbda4b01
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2231269
> Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
> Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
> Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#775847}

TBR=asvitkine@chromium.org,chrishtr@chromium.org,xiaochengh@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 441925, 1092431
Change-Id: Ife4aa822dda70d88249306b63e30d3d39df7a560
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2242383
Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#778044}

content/child/runtime_features.cc

@@ -356,9 +356,6 @@ void SetRuntimeFeaturesFromChromiumFeatures() {
           {"CSSReducedFontLoadingInvalidations",
            blink::features::kCSSReducedFontLoadingInvalidations,
            kUseFeatureState},
-          {"CSSReducedFontLoadingLayoutInvalidations",
-           blink::features::kCSSReducedFontLoadingLayoutInvalidations,
-           kUseFeatureState},
           {"CSSMatchedPropertiesCacheDependencies",
            blink::features::kCSSMatchedPropertiesCacheDependencies,
            kUseFeatureState},

testing/variations/fieldtrial_testing_config.json

@@ -1271,27 +1271,6 @@
             ]
         }
     ],
-    "CSSReducedFontLoadingLayoutInvalidations": [
-        {
-            "platforms": [
-                "android",
-                "android_weblayer",
-                "android_webview",
-                "chromeos",
-                "linux",
-                "mac",
-                "windows"
-            ],
-            "experiments": [
-                {
-                    "name": "Enabled",
-                    "enable_features": [
-                        "CSSReducedFontLoadingLayoutInvalidations"
-                    ]
-                }
-            ]
-        }
-    ],
     "CacheStorageEagerReading": [
         {
             "platforms": [

third_party/blink/common/features.cc

@@ -464,9 +464,6 @@ const base::Feature kDawn2dCanvas{"Dawn2dCanvas",
 
 const base::Feature kCSSReducedFontLoadingInvalidations{
     "CSSReducedFontLoadingInvalidations", base::FEATURE_DISABLED_BY_DEFAULT};
-const base::Feature kCSSReducedFontLoadingLayoutInvalidations{
-    "CSSReducedFontLoadingLayoutInvalidations",
-    base::FEATURE_DISABLED_BY_DEFAULT};
 
 // When enabled, frees up CachedMetadata after consumption by script resources
 // and modules. Needed for the experiment in http://crbug.com/1045052.

third_party/blink/public/common/features.h

@@ -147,8 +147,6 @@ BLINK_COMMON_EXPORT extern const base::Feature kDawn2dCanvas;
 
 BLINK_COMMON_EXPORT extern const base::Feature
     kCSSReducedFontLoadingInvalidations;
-BLINK_COMMON_EXPORT extern const base::Feature
-    kCSSReducedFontLoadingLayoutInvalidations;
 
 BLINK_COMMON_EXPORT extern const base::Feature kDiscardCodeCacheAfterFirstUse;