Remove ActiveAdmin from Gem file

Gemfile

@@ -27,8 +27,6 @@ gem "govuk_markdown"
 gem "notifications-ruby-client"
 # A modest javascript framework for the html you already have
 gem "stimulus-rails"
-# Administration framework
-gem "activeadmin"
 # Admin charts
 gem "chartkick"
 # Spreadsheet parsing

Gemfile.lock

@@ -69,15 +69,6 @@ GEM
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.1, >= 1.2.0)
-    activeadmin (2.12.0)
-      arbre (~> 1.2, >= 1.2.1)
-      formtastic (>= 3.1, < 5.0)
-      formtastic_i18n (~> 0.4)
-      inherited_resources (~> 1.7)
-      jquery-rails (~> 4.2)
-      kaminari (~> 1.0, >= 1.2.1)
-      railties (>= 6.0, < 7.1)
-      ransack (>= 2.1.1, < 4)
     activejob (7.0.2.4)
       activesupport (= 7.0.2.4)
       globalid (>= 0.3.6)
@@ -100,9 +91,6 @@ GEM
       tzinfo (~> 2.0)
     addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
-    arbre (1.5.0)
-      activesupport (>= 3.0.0, < 7.1)
-      ruby2_keywords (>= 0.0.2, < 1.0)
     ast (2.4.2)
     aws-eventstream (1.2.0)
     aws-partitions (1.584.0)
@@ -183,9 +171,6 @@ GEM
       factory_bot (~> 6.2.0)
       railties (>= 5.0.0)
     ffi (1.15.5)
-    formtastic (4.0.0)
-      actionpack (>= 5.2.0)
-    formtastic_i18n (0.7.0)
     globalid (1.0.0)
       activesupport (>= 5.0)
     govuk-components (3.0.3)
@@ -200,41 +185,17 @@ GEM
     govuk_markdown (1.0.0)
       activesupport
       redcarpet
-    has_scope (0.8.0)
-      actionpack (>= 5.2)
-      activesupport (>= 5.2)
     hashdiff (1.0.1)
     html_tokenizer (0.0.7)
     i18n (1.10.0)
       concurrent-ruby (~> 1.0)
-    inherited_resources (1.13.1)
-      actionpack (>= 5.2, < 7.1)
-      has_scope (~> 0.6)
-      railties (>= 5.2, < 7.1)
-      responders (>= 2, < 4)
     iniparse (1.5.0)
     jmespath (1.6.1)
-    jquery-rails (4.4.0)
-      rails-dom-testing (>= 1, < 3)
-      railties (>= 4.2.0)
-      thor (>= 0.14, < 2.0)
     jsbundling-rails (1.0.2)
       railties (>= 6.0.0)
     json-schema (3.0.0)
       addressable (>= 2.8)
     jwt (2.3.0)
-    kaminari (1.2.2)
-      activesupport (>= 4.1.0)
-      kaminari-actionview (= 1.2.2)
-      kaminari-activerecord (= 1.2.2)
-      kaminari-core (= 1.2.2)
-    kaminari-actionview (1.2.2)
-      actionview
-      kaminari-core (= 1.2.2)
-    kaminari-activerecord (1.2.2)
-      activerecord
-      kaminari-core (= 1.2.2)
-    kaminari-core (1.2.2)
     listen (3.7.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
@@ -342,10 +303,6 @@ GEM
     rainbow (3.1.1)
     rake (13.0.6)
     randexp (0.1.7)
-    ransack (3.1.0)
-      activerecord (>= 6.0.4)
-      activesupport (>= 6.0.4)
-      i18n
     rb-fsevent (0.11.1)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -468,7 +425,6 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  activeadmin
   aws-sdk-s3
   bootsnap (>= 1.4.4)
   bundler-audit