fs: unexport d_genocide

d_genocide is only used by built-in code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Message-Id: <20230808161704.1099680-1-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>

fs/dcache.c

@@ -3247,8 +3247,6 @@ void d_genocide(struct dentry *parent)
 	d_walk(parent, parent, d_genocide_kill);
 }
 
-EXPORT_SYMBOL(d_genocide);
-
 void d_tmpfile(struct file *file, struct inode *inode)
 {
 	struct dentry *dentry = file->f_path.dentry;