DEV: do not return no_result_help from the server (#15220)

We don't need it anymore. Actually, I removed using of it on the client side a long time ago, when I was working on improving blank page syndrome on user activity pages (see https://github.com/discourse/discourse/pull/14311).

This PR also removes some old resource strings that we don't use anymore. We have new strings for blank pages.

app/controllers/drafts_controller.rb

@@ -16,8 +16,7 @@ class DraftsController < ApplicationController
     )
 
     render json: {
-      drafts: stream ? serialize_data(stream, DraftSerializer) : [],
-      no_results_help: I18n.t("user_activity.no_drafts.self")
+      drafts: stream ? serialize_data(stream, DraftSerializer) : []
     }
   end
 

app/controllers/user_actions_controller.rb

@@ -25,20 +25,7 @@ class UserActionsController < ApplicationController
     }
 
     stream = UserAction.stream(opts).to_a
-    if stream.empty? && (help_key = params['no_results_help_key'])
-      if user.id == guardian.user.try(:id)
-        help_key += ".self"
-      else
-        help_key += ".others"
-      end
-      render json: {
-        user_action: [],
-        no_results_help: I18n.t(help_key)
-      }
-    else
-      render_serialized(stream, UserActionSerializer, root: 'user_actions')
-    end
-
+    render_serialized(stream, UserActionSerializer, root: 'user_actions')
   end
 
   def show

app/controllers/users_controller.rb

@@ -1621,10 +1621,7 @@ class UsersController < ApplicationController
 
         if bookmark_list.bookmarks.empty?
           render json: {
-            bookmarks: [],
-            no_results_help: I18n.t(
-              params[:q].present? ? "user_activity.no_bookmarks.search" : "user_activity.no_bookmarks.self"
-            )
+            bookmarks: []
           }
         else
           page = params[:page].to_i + 1

config/locales/server.en.yml

@@ -965,12 +965,6 @@ en:
     pm_title: "Backup Drafts from ongoing topics"
     pm_body: "Topic containing backup drafts"
   user_activity:
-    no_bookmarks:
-      self: "You have no bookmarked posts; bookmarks allow you to quickly refer to specific posts."
-      search: "No bookmarks found with the provided search query."
-      others: "No bookmarks."
-    no_drafts:
-      self: "You have no drafts; begin composing a reply in any topic and it will be auto-saved as a new draft."
     no_log_search_queries: "Search log queries are currently disabled (an administrator can enable them in site settings)."
 
   email_settings:

spec/requests/user_actions_controller_spec.rb

@@ -49,36 +49,6 @@ describe UserActionsController do
         .to eq(user.username)
     end
 
-    it 'renders help text if provided for self' do
-      logged_in = sign_in(Fabricate(:user))
-
-      get "/user_actions.json", params: {
-        filter: UserAction::LIKE,
-        username: logged_in.username,
-        no_results_help_key: "user_activity.no_bookmarks"
-      }
-
-      expect(response.status).to eq(200)
-      parsed = response.parsed_body
-
-      expect(parsed["no_results_help"]).to eq(I18n.t("user_activity.no_bookmarks.self"))
-    end
-
-    it 'renders help text for others' do
-      user = Fabricate(:user)
-
-      get "/user_actions.json", params: {
-        filter: UserAction::LIKE,
-        username: user.username,
-        no_results_help_key: "user_activity.no_bookmarks"
-      }
-
-      expect(response.status).to eq(200)
-      parsed = response.parsed_body
-
-      expect(parsed["no_results_help"]).to eq(I18n.t("user_activity.no_bookmarks.others"))
-    end
-
     context 'hidden profiles' do
       fab!(:post) { Fabricate(:post) }
 

spec/requests/users_controller_spec.rb

@@ -5074,9 +5074,6 @@ describe UsersController do
       get "/u/#{user.username}/bookmarks.json"
       expect(response.status).to eq(200)
       expect(response.parsed_body['bookmarks']).to eq([])
-      expect(response.parsed_body['no_results_help']).to eq(
-        I18n.t('user_activity.no_bookmarks.self')
-      )
     end
 
     it "shows a helpful message if no bookmarks are found for the search" do
@@ -5086,9 +5083,6 @@ describe UsersController do
       }
       expect(response.status).to eq(200)
       expect(response.parsed_body['bookmarks']).to eq([])
-      expect(response.parsed_body['no_results_help']).to eq(
-        I18n.t('user_activity.no_bookmarks.search')
-      )
     end
   end