Remove customized SettingsRippleTheme

Which not allowed in androidx.compose.material.ripple library anymore.

And by removing this, we can follow material3, and align with other
parts in  Settings.

Using LocalContentColor provides MaterialTheme.colorScheme.onSurface
to fix ripple color instead.

Fix: 313682621
Test: visual
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:cb737f8159198f111429be693f73abb11c352c5f)
Merged-In: I7337d25889c4091ae8d3c063caa30cbf1edd4930
Change-Id: I7337d25889c4091ae8d3c063caa30cbf1edd4930

packages/SettingsLib/Spa/spa/src/com/android/settingslib/spa/framework/theme/SettingsTheme.kt

@@ -17,9 +17,7 @@
 package com.android.settingslib.spa.framework.theme
 
 import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.material.ripple.LocalRippleTheme
-import androidx.compose.material.ripple.RippleAlpha
-import androidx.compose.material.ripple.RippleTheme
+import androidx.compose.material3.LocalContentColor
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.CompositionLocalProvider
@@ -39,7 +37,7 @@ fun SettingsTheme(content: @Composable () -> Unit) {
     MaterialTheme(colorScheme = colorScheme, typography = rememberSettingsTypography()) {
         CompositionLocalProvider(
             LocalColorScheme provides settingsColorScheme(isDarkTheme),
-            LocalRippleTheme provides SettingsRippleTheme,
+            LocalContentColor provides MaterialTheme.colorScheme.onSurface,
         ) {
             content()
         }
@@ -52,19 +50,3 @@ object SettingsTheme {
         @ReadOnlyComposable
         get() = LocalColorScheme.current
 }
-
-private object SettingsRippleTheme : RippleTheme {
-    @Composable
-    override fun defaultColor() = MaterialTheme.colorScheme.onSurface
-
-    @Composable
-    override fun rippleAlpha() = RippleAlpha
-}
-
-/** Alpha levels for all content. */
-private val RippleAlpha = RippleAlpha(
-    pressedAlpha = 0.48f,
-    focusedAlpha = 0.48f,
-    draggedAlpha = 0.32f,
-    hoveredAlpha = 0.16f,
-)