Fixed delete icon alignment in IE8

Removed old inline CSS that forced every td to have position:static in
the files app. (#5056)

apps/files/templates/index.php

-<!--[if IE 8]><style>input[type="checkbox"]{padding:0;}table td{position:static !important;}</style><![endif]-->
+<!--[if IE 8]><style>input[type="checkbox"]{padding:0;}</style><![endif]-->
 <div id="controls">
 	<?php print_unescaped($_['breadcrumb']); ?>
 		<div class="actions creatable <?php if (!$_['isCreatable']):?>hidden<?php endif; ?> <?php if (isset($_['files']) and count($_['files'])==0):?>emptycontent<?php endif; ?>">

apps/files_trashbin/templates/index.php

-<!--[if IE 8]><style>input[type="checkbox"]{padding:0;}table td{position:static !important;}</style><![endif]-->
+<!--[if IE 8]><style>input[type="checkbox"]{padding:0;}</style><![endif]-->
 <div id="controls">
 	<?php print_unescaped($_['breadcrumb']); ?>
 		<div id="file_action_panel"></div>