Use 'ion-ios-trash' for /feed/history

src/invidious/views/history.ecr

@@ -18,11 +18,7 @@
                                 onmouseenter='this["href"]="javascript:void(0)"'
                                 href="/mark_unwatched?id=<%= item %>"'
                             >
-                                <i onmouseenter='this.setAttribute("class", "icon ion-ios-eye")'
+                                <i class="icon ion-ios-trash"></i>
-                                    onmouseleave='this.setAttribute("class", "icon ion-ios-eye-off")'
-                                    class="icon ion-ios-eye-off"
-                                >
-                                </i>
                             </a>
                         </p>
                     </div>