[fenix] For https://github.com/mozilla-mobile/fenix/issues/21973 - Remove @color/disabled_dark_theme redirection

app/src/main/res/values-night/colors.xml

@@ -20,7 +20,7 @@
     <color name="neutral_faded_normal_theme">#1FFBFBFE</color>
     <color name="shadow_normal_theme">#050505</color>
     <color name="destructive_normal_theme">@color/photonRed40</color>
-    <color name="disabled_normal_theme">@color/disabled_dark_theme</color>
+    <color name="disabled_normal_theme">#66FBFBFE</color>
     <color name="scrimStart_normal_theme">#F520123A</color>
     <color name="scrimEnd_normal_theme">#F515141A</color>
     <color name="toggle_off_knob_normal_theme">@color/toggle_off_knob_dark_theme</color>

app/src/main/res/values/colors.xml

@@ -30,7 +30,6 @@
     <color name="accent_dark_theme">@color/photonViolet50</color>
     <color name="accent_bright_dark_theme">@color/photonViolet70</color>
     <color name="accent_high_contrast_dark_theme">@color/photonViolet40</color>
-    <color name="disabled_dark_theme">#66FBFBFE</color>
     <color name="toolbar_start_gradient_dark_theme">@color/foundation_dark_theme</color>
     <color name="toolbar_center_gradient_dark_theme">@color/foundation_dark_theme</color>
     <color name="toolbar_end_gradient_dark_theme">@color/foundation_dark_theme</color>