ssb: Remove the weird option to make the server account follow you. Now that this account is admin-controlled, it's unnecessary.

core/core.js

@@ -577,19 +577,6 @@ async function getProcessBlob(blobId, key, options) {
 					);
 				}
 			};
-			imports.ssb.setServerFollowingMe = function (id, following) {
-				if (
-					process.credentials &&
-					process.credentials.session &&
-					process.credentials.session.name
-				) {
-					return ssb.setServerFollowingMe(
-						process.credentials.session.name,
-						id,
-						following
-					);
-				}
-			};
 			imports.ssb.swapWithServerIdentity = function (id) {
 				if (
 					process.credentials &&