[Glitch] Profile editing: Use server flag

Port 00bcb014df to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/utils/environment.ts

@@ -18,7 +18,7 @@ export function isServerFeatureEnabled(feature: ServerFeatures) {
   return initialState?.features.includes(feature) ?? false;
 }
 
-type ClientFeatures = 'collections' | 'profile_editing';
+type ClientFeatures = 'collections';
 
 export function isClientFeatureEnabled(feature: ClientFeatures) {
   try {