[Spa] Fix the Title color

Not hard code one, use the default on container color.

Fix: 343040341
Test: visual
Merged-In: If938962b91775206f32f0107b3b4702f9b5f88d1
Change-Id: I411e468425e5b811ba5c76c72aa158932ef2b087
diff --git a/packages/SettingsLib/Spa/spa/src/com/android/settingslib/spa/widget/ui/Text.kt b/packages/SettingsLib/Spa/spa/src/com/android/settingslib/spa/widget/ui/Text.kt
index a59b95a..8f36ef0 100644
--- a/packages/SettingsLib/Spa/spa/src/com/android/settingslib/spa/widget/ui/Text.kt
+++ b/packages/SettingsLib/Spa/spa/src/com/android/settingslib/spa/widget/ui/Text.kt
@@ -40,7 +40,6 @@
     Text(
         text = title,
         modifier = Modifier.padding(vertical = SettingsDimension.paddingTiny),
-        color = MaterialTheme.colorScheme.onSurface,
         style = MaterialTheme.typography.titleMedium.withWeight(useMediumWeight),
     )
 }