Remove signToActivityPubGet option

Makes it so that all requests are signed, equivalent to
signToActivityPubGet always being true.

.config/example.yml

@@ -120,9 +120,6 @@ redis:
 # Proxy remote files (default: false)
 #proxyRemoteFiles: true
 
-# Sign to ActivityPub GET request (default: false)
-#signToActivityPubGet: true
-
 #allowedPrivateNetworks: [
 #  '127.0.0.1/32'
 #]

packages/backend/src/config/types.ts

@@ -63,8 +63,6 @@ export type Source = {
 
 	mediaProxy?: string;
 	proxyRemoteFiles?: boolean;
-
-	signToActivityPubGet?: boolean;
 };
 
 /**

packages/backend/src/remote/activitypub/resolver.ts

@@ -72,7 +72,7 @@ export default class Resolver {
 			throw new Error('Instance is blocked');
 		}
 
-		if (config.signToActivityPubGet && !this.user) {
+		if (!this.user) {
 			this.user = await getInstanceActor();
 		}