drop support for SET_DEFAULT_STORAGE_LIMIT

it's redundant now that we support persistent admin decrees
and it was never exposed via the UI anyway

lib/commands/admin-rpc.js

@@ -175,23 +175,6 @@ var restoreArchivedDocument = function (Env, Server, cb) {
     cb("NOT_IMPLEMENTED");
 };
 
-// CryptPad_AsyncStore.rpc.send('ADMIN', ['SET_DEFAULT_STORAGE_LIMIT', 1024 * 1024 * 1024 /* 1GB */], console.log)
-// XXX remove
-var setDefaultStorageLimit = function (Env, Server, cb, data) {
-    var value = Array.isArray(data) && data[1];
-    if (typeof(value) !== 'number' || value <= 0) { return void cb('EINVAL'); }
-    var previous = Env.defaultStorageLimit;
-    var change = {
-        previous: previous,
-        current: value,
-    };
-
-    Env.defaultStorageLimit = value;
-    Env.Log.info('DEFAULT_STORAGE_LIMIT_UPDATE', change);
-
-    cb(void 0, change);
-};
-
 // CryptPad_AsyncStore.rpc.send('ADMIN', [ 'ADMIN_DECREE', ['RESTRICT_REGISTRATION', [true]]], console.log)
 var adminDecree = function (Env, Server, cb, data, safeKey) {
     var value = data[1];
@@ -251,7 +234,6 @@ var commands = {
     SHUTDOWN: shutdown,
     GET_FILE_DESCRIPTOR_COUNT: getFileDescriptorCount,
     GET_FILE_DESCRIPTOR_LIMIT: getFileDescriptorLimit,
-    SET_DEFAULT_STORAGE_LIMIT: setDefaultStorageLimit,
     GET_CACHE_STATS: getCacheStats,
 
     ARCHIVE_DOCUMENT: archiveDocument,