powerpc/spufs: Remove unused error path

Commit 45db9240 ("powerpc/spufs: Remove
double check for non-negative dentry") removed the only user of the
out_dput label, so remove it and the code following it.

Gets rid of this warning:

arch/powerpc/platforms/cell/spufs/inode.c: In function 'spufs_create':
arch/powerpc/platforms/cell/spufs/inode.c:647: warning: label 'out_dput' defined but not used
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/platforms/cell/spufs/inode.c

@@ -644,8 +644,6 @@ long spufs_create(struct nameidata *nd, unsigned int flags, mode_t mode,
 		fsnotify_mkdir(nd->path.dentry->d_inode, dentry);
 	return ret;
 
-out_dput:
-	dput(dentry);
 out_dir:
 	mutex_unlock(&nd->path.dentry->d_inode->i_mutex);
 out: