Revert "FIX: various select-kit corrections on mobile"

This reverts commit 78a2324c89.

app/assets/javascripts/select-kit/components/select-kit.js.es6

@@ -92,6 +92,17 @@ export default Ember.Component.extend(
       this.set("computedContent", []);
       this.set("highlightedSelection", []);
 
+      if (this.site && this.site.isMobileDevice) {
+        this.setProperties({
+          filterable: isNone(this.get("filterable"))
+            ? false
+            : this.get("filterable"),
+          autoFilterable: isNone(this.get("autoFilterable"))
+            ? false
+            : this.get("filterable")
+        });
+      }
+
       if (this.get("nameChanges")) {
         this.addObserver(
           `content.@each.${this.get("nameProperty")}`,

app/assets/javascripts/select-kit/mixins/dom-helpers.js.es6

@@ -82,10 +82,8 @@ export default Ember.Mixin.create({
   },
 
   focus() {
-    Ember.run.next(() => {
-      Ember.run.schedule("afterRender", () => {
-        this.$filterInput().focus();
-      });
+    Ember.run.schedule("afterRender", () => {
+      this.$header().focus();
     });
   },
 
@@ -95,7 +93,11 @@ export default Ember.Mixin.create({
     // next so we are sure it finised expand/collapse
     Ember.run.next(() => {
       Ember.run.schedule("afterRender", () => {
-        if (!context.$filterInput() || !context.$filterInput().is(":visible")) {
+        if (
+          (this.site && this.site.isMobileDevice) ||
+          !context.$filterInput() ||
+          !context.$filterInput().is(":visible")
+        ) {
           context.$header().focus();
         } else {
           context.$filterInput().focus();

app/assets/javascripts/select-kit/mixins/events.js.es6

@@ -16,11 +16,11 @@ export default Ember.Mixin.create({
   },
 
   willDestroyElement() {
-    this._super(...arguments);
+    this._super();
 
     $(document).off("mousedown.select-kit");
 
-    if (this.$header().length) {
+    if (this.$header()) {
       this.$header()
         .off("blur.select-kit")
         .off("focus.select-kit")
@@ -28,7 +28,7 @@ export default Ember.Mixin.create({
         .off("keydown.select-kit");
     }
 
-    if (this.$filterInput().length) {
+    if (this.$filterInput()) {
       this.$filterInput()
         .off("change.select-kit")
         .off("keydown.select-kit")
@@ -37,7 +37,7 @@ export default Ember.Mixin.create({
   },
 
   didInsertElement() {
-    this._super(...arguments);
+    this._super();
 
     $(document).on("mousedown.select-kit", event => {
       if (!this.element || this.isDestroying || this.isDestroyed) {