Revert "Land enableClientRenderFallbackOnTextMismatch for www" (#28548)

We're looking to run further experiments on this.

Reverts facebook/react#28538

packages/shared/forks/ReactFeatureFlags.www-dynamic.js

@@ -29,6 +29,7 @@ export const enableUseDeferredValueInitialArg = __VARIANT__;
 export const enableRenderableContext = __VARIANT__;
 export const useModernStrictMode = __VARIANT__;
 export const enableRefAsProp = __VARIANT__;
+export const enableClientRenderFallbackOnTextMismatch = __VARIANT__;
 export const enableRetryLaneExpiration = __VARIANT__;
 export const retryLaneExpirationMs = 5000;
 export const syncLaneExpirationMs = 250;

packages/shared/forks/ReactFeatureFlags.www.js

@@ -37,6 +37,7 @@ export const {
   enableRenderableContext,
   useModernStrictMode,
   enableRefAsProp,
+  enableClientRenderFallbackOnTextMismatch,
 } = dynamicFeatureFlags;
 
 // On WWW, __EXPERIMENTAL__ is used for a new modern build.
@@ -47,7 +48,7 @@ export const enableProfilerTimer = __PROFILE__;
 export const enableProfilerCommitHooks = __PROFILE__;
 export const enableProfilerNestedUpdatePhase = __PROFILE__;
 export const enableUpdaterTracking = __PROFILE__;
-export const enableClientRenderFallbackOnTextMismatch = true;
+
 export const enableSuspenseAvoidThisFallback = true;
 export const enableSuspenseAvoidThisFallbackFizz = false;