Revert "Enable dynamic color gamut by default"

Certain devices were seeing whites turn yellow-ish and reported bugs.

This reverts commit 236dcacc.

Bug: 735658,1151495
Change-Id: I4f9c26026402b028b0eefdffc2b7c0e00b7c9317
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2566781
Commit-Queue: Khushal <khushalsagar@chromium.org>
Reviewed-by: Khushal <khushalsagar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#832582}

components/viz/common/features.cc

@@ -45,7 +45,7 @@ const base::Feature kDisableDeJelly{"DisableDeJelly",
 // When wide color gamut content from the web is encountered, promote our
 // display to wide color gamut if supported.
 const base::Feature kDynamicColorGamut{"DynamicColorGamut",
-                                       base::FEATURE_ENABLED_BY_DEFAULT};
+                                       base::FEATURE_DISABLED_BY_DEFAULT};
 #endif
 
 // Uses glClear to composite solid color quads whenever possible.