Remove unused method uploadFile

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

apps/files_external/lib/Lib/Storage/SFTP.php

@@ -429,15 +429,6 @@ class SFTP extends \OC\Files\Storage\Common {
 		$this->getConnection()->get($path, $target);
 	}
 
-	/**
-	 * @param string $path
-	 * @param string $target
-	 * @throws \Exception
-	 */
-	public function uploadFile($path, $target) {
-		$this->getConnection()->put($target, $path, NET_SFTP_LOCAL_FILE);
-	}
-
 	/**
 	 * {@inheritdoc}
 	 */