DEV: Remove `unsafe_eval` from test/theme-test CSP (#28774)

not needed anymore

lib/content_security_policy.rb

@@ -21,7 +21,6 @@ class ContentSecurityPolicy
     Extension.theme_extensions(theme_id).each { |extension| builder << extension }
     Extension.plugin_extensions.each { |extension| builder << extension }
     builder << Extension.site_setting_extension
-    builder << Extension.path_specific_extension(path_info)
 
     builder.build
   end

lib/content_security_policy/extension.rb

@@ -7,14 +7,6 @@ class ContentSecurityPolicy
       { script_src: SiteSetting.content_security_policy_script_src.split("|") }
     end
 
-    def path_specific_extension(path_info)
-      {}.tap do |obj|
-        for_qunit_route = !Rails.env.production? && %w[/qunit /wizard/qunit].include?(path_info)
-        for_qunit_route ||= "/theme-qunit" == path_info
-        obj[:script_src] = :unsafe_eval if for_qunit_route
-      end
-    end
-
     def plugin_extensions
       [].tap do |extensions|
         Discourse.plugins.each do |plugin|