Merge pull request #11679 from nextcloud/refactor/remove-ie8-apis

Remove IE8 APIs

apps/files/js/mainfileinfodetailview.js

 				} else {
 					var iconUrl = this.model.get('icon') || OC.MimeType.getIconUrl('dir');
 					$iconDiv.css('background-image', 'url("' + iconUrl + '")');
-					OC.Util.scaleFixForIE8($iconDiv);
 				}
 				this.$el.find('[title]').tooltip({placement: 'bottom'});
 			} else {

apps/files/js/newfilemenu.js

 				uploadLabel: t('files', 'Upload file'),
 				items: this._menuItems
 			}));
-			OC.Util.scaleFixForIE8(this.$('.svg'));
 
 			// Trigger upload action also with keyboard navigation on enter
 			this.$el.find('[for="file_upload_start"]').on('keyup', function(event) {

core/js/js.js

-/**
- * Disable console output unless DEBUG mode is enabled.
- * Add
- *      'debug' => true,
- * To the definition of $CONFIG in config/config.php to enable debug mode.
- * The undefined checks fix the broken ie8 console
- */
-
 /* global oc_isadmin */
 
 var oc_debug;
 		return moment(timestamp).fromNow();
 	},
 
-	/**
-	 * Fix image scaling for IE8, since background-size is not supported.
-	 *
-	 * This scales the image to the element's actual size, the URL is
-	 * taken from the "background-image" CSS attribute.
-	 *
-	 * @deprecated IE8 isn't supported since 9.0
-	 * @param {Object} $el image element
-	 */
-	scaleFixForIE8: function($el) {},
-
 	/**
 	 * Returns whether this is IE
 	 *
 		return $('html').hasClass('ie');
 	},
 
-	/**
-	 * Returns whether this is IE8
-	 *
-	 * @deprecated IE8 isn't supported since 9.0
-	 * @return {bool} false (IE8 isn't supported anymore)
-	 */
-	isIE8: function() {
-		return false;
-	},
-
 	/**
 	 * Returns the width of a generic browser scrollbar
 	 *