[listTableView beginUpdates];
[listTableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:[NSIndexPath indexPathForRow:rowNumber inSection:0]]
withRowAnimation:UITableViewRowAnimationLeft]; // there are a few other animations, check out the enum
// Remove the cell's contents from your data source, for example:
// [contentsArray removeObjectAtIndex:rowNumber];
[listTableView endUpdates];