remove notifications for now

prisma/migrations/20220517081338_notifications/migration.sql

@@ -1,10 +0,0 @@
--- CreateTable
-CREATE TABLE "Notification" (
-    "id" TEXT NOT NULL PRIMARY KEY,
-    "type" TEXT NOT NULL,
-    "message" TEXT NOT NULL,
-    "isRead" BOOLEAN NOT NULL DEFAULT false,
-    "showAtVersion" TEXT NOT NULL,
-    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    "updatedAt" DATETIME NOT NULL
-);