Refactor: Remove @Sample annotation

Removes the `@Sample` annotation from multiple sample files. The affected files include:
- `PhotoPicker.kt`
- `DragAndDrop.kt`
- `MediaStoreQuery.kt`
- `DataAccess.kt`
- `SelectedPhotosAccess.kt`
- `ScreenshotDetection.kt`

These annotations are no longer needed or are being replaced by other mechanisms.

Author: yrezgui

samples/privacy/transparency/src/main/java/com/example/platform/privacy/transparency/DataAccess.kt

@@ -47,13 +47,10 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalLifecycleOwner
 import androidx.compose.ui.unit.dp
 import androidx.core.app.AppOpsManagerCompat
-//import androidx.core.content.getSystemService
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleEventObserver
 import androidx.lifecycle.LifecycleOwner
-//import com.example.platform.base.PermissionBox
 import com.example.platform.shared.PermissionBox
-//import com.google.android.catalog.framework.annotations.Sample
 import com.google.android.gms.location.LocationServices
 import com.google.android.gms.location.Priority
 import com.google.android.gms.tasks.CancellationTokenSource
@@ -62,13 +59,6 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.tasks.await
 
 @SuppressLint("MissingPermission")
-//@Sample(
-//    name = "Data Access",
-//    description = "Demonstrates how to implement data access auditing for your app to identify " +
-//            "unexpected data access, even from third-party SDKs and libraries.",
-//    documentation = "https://developer.android.com/guide/topics/data/audit-access",
-//)
-
 @RequiresApi(Build.VERSION_CODES.R)
 @Composable
 fun DataAccessSample() {

samples/privacy/transparency/src/main/java/com/example/platform/privacy/transparency/ScreenshotDetection.kt

@@ -39,10 +39,6 @@ import androidx.fragment.app.Fragment
 import java.text.DateFormat
 import java.util.Date
 
-//@Sample(
-//    name = "Screenshot Detection",
-//    description = "This sample shows how to detect that the user capture the screen in Android 14 onwards",
-//)
 @RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
 class ScreenshotDetectionSample : Fragment() {
 

samples/storage/src/main/java/com/example/platform/storage/mediastore/MediaStoreQuery.kt

@@ -45,17 +45,10 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import coil.compose.AsyncImage
-//import com.example.platform.base.PermissionBox
 import com.example.platform.shared.PermissionBox
-//import com.google.android.catalog.framework.annotations.Sample
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
-//@Sample(
-//    name = "MediaStore - Query",
-//    description = "Query files indexed by MediaStore",
-//    documentation = "https://developer.android.com/training/data-storage/shared/media#media_store",
-//)
 @SuppressLint("MissingPermission")
 @Composable
 fun MediaStoreQuerySample() {

samples/storage/src/main/java/com/example/platform/storage/mediastore/SelectedPhotosAccess.kt

@@ -48,12 +48,6 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 
-//@Sample(
-//    name = "Selected Photos Access",
-//    description = "Check and request storage permissions",
-//    documentation = "https://developer.android.com/about/versions/14/changes/partial-photo-video-access",
-//)
-//@RequiresPermission(anyOf = [READ_MEDIA_IMAGES, READ_MEDIA_VIDEO, READ_EXTERNAL_STORAGE])
 @Composable
 fun SelectedPhotosAccessSample() {
     val context = LocalContext.current

samples/storage/src/main/java/com/example/platform/storage/photopicker/PhotoPicker.kt

@@ -59,12 +59,6 @@ import coil.compose.AsyncImage
  * picker. Check out the AndroidManifest.xml of the storage section to see the <service> declaration
  * that enables backport support on Android KitKat onwards using Google Play Services
  */
-@OptIn(ExperimentalMaterial3Api::class)
-//@Sample(
-//    name = "PhotoPicker",
-//    description = "Select images/videos in a privacy-friendly way using the photo picker",
-//    documentation = "https://developer.android.com/training/data-storage/shared/photopicker",
-//)
 @Composable
 fun PhotoPickerSample() {
     var selectedMedia by remember { mutableStateOf(emptyList<Uri>()) }

samples/user-interface/draganddrop/src/main/java/com/example/platform/ui/draganddrop/DragAndDrop.kt

@@ -50,12 +50,6 @@ private const val TAG = "DragDropSample"
 private const val MAX_LENGTH = 200
 
 @RequiresApi(24)
-/*@Sample(
-    name = "Drag and Drop",
-    description = "Demonstrates basic Drag and Drop functionality.",
-    documentation = "https://developer.android.com/develop/ui/views/touch-and-input/drag-drop",
-)
- */
 @Deprecated("The new sample include segregated examples individually for Views, DragAndDropHelper, RichContentReceiver along with Compose")
 class DragAndDropActivity : AppCompatActivity() {