Drop dynamic_form gem which is no longer required

Gemfile

@@ -43,7 +43,6 @@ gem "cancancan"
 gem "composite_primary_keys", "~> 12.0.0"
 gem "config"
 gem "delayed_job_active_record"
-gem "dynamic_form"
 gem "http_accept_language", "~> 2.1.1"
 gem "i18n-js", ">= 3.0.0"
 gem "oauth-plugin", ">= 0.5.1"

Gemfile.lock

@@ -181,7 +181,6 @@ GEM
       dry-equalizer (~> 0.2)
       dry-initializer (~> 3.0)
       dry-schema (~> 1.5, >= 1.5.2)
-    dynamic_form (1.1.4)
     erb_lint (0.0.37)
       activesupport
       better_html (~> 1.0.7)
@@ -495,7 +494,6 @@ DEPENDENCIES
   dalli
   debug_inspector
   delayed_job_active_record
-  dynamic_form
   erb_lint
   factory_bot_rails
   faraday
@@ -555,4 +553,4 @@ DEPENDENCIES
   webmock
 
 BUNDLED WITH
-   2.2.8
+   2.2.16