DEV: Remove unnecessary rails_helper requiring (#26364)

plugins/chat/spec/models/category_spec.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "rails_helper"
-
 RSpec.describe Category do
   it_behaves_like "a chatable model" do
     fab!(:chatable) { Fabricate(:category) }

plugins/chat/spec/models/chat/direct_message_spec.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "rails_helper"
-
 describe Chat::DirectMessage do
   fab!(:user1) { Fabricate(:user, username: "chatdmfellow1") }
   fab!(:user2) { Fabricate(:user, username: "chatdmuser") }

plugins/chat/spec/models/chat/message_spec.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "rails_helper"
-
 describe Chat::Message do
   fab!(:message) { Fabricate(:chat_message, message: "hey friend, what's up?!") }
 

plugins/chat/spec/models/chat/null_message_spec.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "rails_helper"
-
 describe Chat::NullMessage do
   subject(:null_message) { described_class.new }
 

plugins/chat/spec/models/chat/null_user_spec.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "rails_helper"
-
 describe Chat::NullUser do
   subject(:null_user) { described_class.new }
 

plugins/chat/spec/models/chat/reviewable_chat_message_spec.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "rails_helper"
-
 RSpec.describe Chat::ReviewableMessage, type: :model do
   fab!(:moderator)
   fab!(:user)

plugins/chat/spec/models/user_option_spec.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "rails_helper"
-
 RSpec.describe UserOption do
   describe "#chat_separate_sidebar_mode" do
     it "is present" do

plugins/chat/spec/models/user_spec.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "rails_helper"
-
 RSpec.describe User do
   it { is_expected.to have_many(:user_chat_channel_memberships).dependent(:destroy) }
   it { is_expected.to have_many(:chat_message_reactions).dependent(:destroy) }