FIX: Store custom emojis as uploads.

* Depending on a hardcoded directory was a flawed design
  which made it impossible to debug when custom emojis go
  missing.

spec/controllers/admin/emojis_controller_spec.rb

@@ -16,10 +16,6 @@ describe Admin::EmojisController do
     end
   end
 
-  it "is a subclass of AdminController" do
-    expect(Admin::EmojisController < Admin::AdminController).to eq(true)
-  end
-
   context "when logged in" do
     let!(:user) { log_in(:admin) }
 
@@ -33,56 +29,6 @@ describe Admin::EmojisController do
         expect(json[0]["url"]).to eq(custom_emoji.url)
       end
     end
-
-    context ".create" do
-
-      before { Emoji.expects(:custom).returns([custom_emoji]) }
-
-      context "name already exist" do
-        it "throws an error" do
-          message = MessageBus.track_publish do
-            xhr :post, :create, { name: "hello", file: "" }
-          end.first
-
-          expect(response).to be_success
-          expect(message.data["errors"]).to be
-        end
-      end
-
-      context "error while saving emoji" do
-        it "throws an error" do
-          Emoji.expects(:create_for).returns(nil)
-          message = MessageBus.track_publish do
-            xhr :post, :create, { name: "garbage", file: "" }
-          end.first
-
-          expect(response).to be_success
-          expect(message.data["errors"]).to be
-        end
-      end
-
-      it "works" do
-        Emoji.expects(:create_for).returns(custom_emoji2)
-
-        message = MessageBus.track_publish do
-          xhr :post, :create, { name: "hello2", file: ""}
-        end.first
-
-        expect(response).to be_success
-
-        expect(message.data["name"]).to eq(custom_emoji2.name)
-        expect(message.data["url"]).to eq(custom_emoji2.url)
-      end
-    end
-
-    context ".destroy" do
-      it "deletes the custom emoji" do
-        custom_emoji.expects(:remove)
-        Emoji.expects(:custom).returns([custom_emoji])
-        xhr :delete, :destroy, id: "hello"
-        expect(response).to be_success
-      end
-    end
   end
 
 end