Remove Guardfile, guard dependencies

Gemfile

@@ -87,7 +87,6 @@ gem 'zxcvbn', '0.1.9'
 group :development do
   gem 'better_errors', '>= 2.5.1'
   gem 'derailed_benchmarks'
-  gem 'guard-rspec', require: false
   gem 'irb'
   gem 'letter_opener', '~> 1.8'
   gem 'rack-mini-profiler', '>= 1.1.3', require: false
@@ -107,6 +106,7 @@ group :development, :test do
   gem 'pry-doc'
   gem 'pry-rails'
   gem 'psych'
+  gem 'rspec', '~> 3.12.0'
   gem 'rspec-rails', '~> 6.0'
   gem 'rubocop', '~> 1.55.1', require: false
   gem 'rubocop-performance', '~> 1.18.0', require: false

Gemfile.lock

@@ -299,7 +299,6 @@ GEM
     ffi-compiler (1.0.1)
       ffi (>= 1.0.0)
       rake
-    formatador (0.2.5)
     foundation_emails (2.2.1.0)
     fugit (1.8.1)
       et-orbi (~> 1, >= 1.2.7)
@@ -318,20 +317,6 @@ GEM
       thor (>= 0.14.1)
       webrick (>= 1.3)
     google-protobuf (3.24.0)
-    guard (2.16.2)
-      formatador (>= 0.2.4)
-      listen (>= 2.7, < 4.0)
-      lumberjack (>= 1.0.12, < 2.0)
-      nenv (~> 0.1)
-      notiffany (~> 0.0)
-      pry (>= 0.9.12)
-      shellany (~> 0.0)
-      thor (>= 0.18.1)
-    guard-compat (1.2.1)
-    guard-rspec (4.7.3)
-      guard (~> 2.1)
-      guard-compat (~> 1.1)
-      rspec (>= 2.99.0, < 4.0)
     hashdiff (1.0.1)
     hashie (4.1.0)
     heapy (0.2.0)
@@ -394,7 +379,6 @@ GEM
       yard (~> 0.9.25)
       zeitwerk (~> 2.5)
     lru_redux (1.1.0)
-    lumberjack (1.2.9)
     mail (2.8.1)
       mini_mime (>= 0.1.1)
       net-imap
@@ -411,7 +395,6 @@ GEM
     minitest (5.19.0)
     msgpack (1.7.2)
     multiset (0.5.3)
-    nenv (0.3.0)
     net-imap (0.3.7)
       date
       net-protocol
@@ -429,9 +412,6 @@ GEM
     nokogiri (1.14.5)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    notiffany (0.1.3)
-      nenv (~> 0.1)
-      shellany (~> 0.0)
     openssl (3.0.2)
     openssl-signature_algorithm (1.2.1)
       openssl (> 2.0, < 3.1)
@@ -630,7 +610,6 @@ GEM
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
-    shellany (0.0.1)
     shoulda-matchers (4.5.1)
       activesupport (>= 4.2.0)
     simple_form (5.1.0)
@@ -756,7 +735,6 @@ DEPENDENCIES
   faraday-retry
   foundation_emails
   good_job (~> 3.0)
-  guard-rspec
   hashie (~> 4.1)
   http_accept_language
   i18n-tasks (~> 1.0)
@@ -807,6 +785,7 @@ DEPENDENCIES
   retries
   rotp (~> 6.1)
   rqrcode
+  rspec (~> 3.12.0)
   rspec-rails (~> 6.0)
   rspec-retry
   rspec_junit_formatter

docs/local-development.md

@@ -61,7 +61,6 @@ If not using macOS:
   Login.gov uses the following tools for our testing:
 
   - [RSpec](https://relishapp.com/rspec/rspec-core/docs/command-line)
-  - [Guard](https://github.com/guard/guard-rspec)
   - [Mocha documentation](https://mochajs.org/)
 
   To run our full test suite locally, use the following command:
@@ -92,24 +91,6 @@ If not using macOS:
   $ SHOW_BROWSER=true bundle exec rspec spec/features/
   ```
 
-### Speeding up local development and testing
-
-  To automatically run the test that corresponds to the file you are editing,
-  run `bundle exec guard` with the env var `GUARD_RSPEC_CMD` set to your preferred
-  command for running `rspec`. For example, if you use [Zeus](https://github.com/burke/zeus),
-  you would set the env var to `zeus rspec`:
-  ```console
-  GUARD_RSPEC_CMD="zeus rspec" bundle exec guard
-  ```
-
-  If you don't specify the `GUARD_RSPEC_CMD` env var, it will default to
-  `bundle exec rspec`.
-
-  We also recommend setting up a shell alias for running this command, such as:
-  ```console
-  alias idpguard='GUARD_RSPEC_CMD="zeus rspec" bundle exec guard'
-  ```
-
 ### Viewing email messages
 
   In local development, the application does not deliver real email messages. Instead, we use a tool