dont expose metadata etag for now

Signed-off-by: Robin Appelman <robin@icewind.nl>

apps/files_trashbin/lib/Trash/TrashItem.php

@@ -178,10 +178,6 @@ class TrashItem implements ITrashItem {
 		return $this->getOriginalLocation();
 	}
 
-	public function getMetadataEtag(): ?string {
-		return $this->fileInfo->getMetadataEtag();
-	}
-
 	public function getCreationTime(): int {
 		return $this->fileInfo->getCreationTime();
 	}

lib/private/Files/FileInfo.php

@@ -407,10 +407,6 @@ class FileInfo implements \OCP\Files\FileInfo, \ArrayAccess {
 		return pathinfo($this->getName(), PATHINFO_EXTENSION);
 	}
 
-	public function getMetadataEtag(): ?string {
-		return $this->data['metadata_etag'];
-	}
-
 	public function getCreationTime(): int {
 		return $this->data['creation_time'];
 	}

lib/private/Files/Node/LazyRoot.php

@@ -481,13 +481,6 @@ class LazyRoot implements IRootFolder {
 		return $this->__call(__FUNCTION__, func_get_args());
 	}
 
-	/**
-	 * @inheritDoc
-	 */
-	public function getMetadataEtag(): ?string {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
 	/**
 	 * @inheritDoc
 	 */

lib/private/Files/Node/Node.php

@@ -444,10 +444,6 @@ class Node implements \OCP\Files\Node {
 		}
 	}
 
-	public function getMetadataEtag(): ?string {
-		return $this->getFileInfo()->getMetadataEtag();
-	}
-
 	public function getCreationTime(): int {
 		return $this->getFileInfo()->getCreationTime();
 	}

lib/public/Files/FileInfo.php

@@ -269,16 +269,6 @@ interface FileInfo {
 	 */
 	public function getExtension(): string;
 
-	/**
-	 * Get the metadata etag for the file
-	 *
-	 * Unlike the regular etag, the metadata etag also gets updated on metadata only changes
-	 *
-	 * @return string | null
-	 * @since 18.0.0
-	 */
-	public function getMetadataEtag(): ?string;
-
 	/**
 	 * Get the creation date as unix timestamp
 	 *