Remove the age warning and sign in gate from The Filter US (#14584)

Author: oliverabrahams

dotcom-rendering/src/components/SignInGate/displayRules.ts

@@ -34,6 +34,7 @@ export const isValidSection = (sectionId?: string): boolean => {
 		'guardian-live-australia',
 		'gnm-archive',
 		'thefilter',
+		'thefilter-us',
 	];
 
 	// we check for invalid section by reducing the above array, and then NOT the result so we know

dotcom-rendering/src/lib/age-warning.ts

@@ -19,6 +19,7 @@ export const getAgeWarning = (
 		'tone/advertisement-features',
 		'gnm-archive/gnm-archive',
 		'thefilter/series/the-filter',
+		'thefilter-us/series/thefilter-us',
 	];
 	const showAge = !tags.some(({ id }) => tagsWithoutAgeWarning.includes(id));