Removed uuid as a dependency for @firebase/database (#6410)

* Removed uuid as a dependency for database

Author: maneesht

.changeset/clever-ears-tell.md

@@ -0,0 +1,5 @@
+---
+"@firebase/database": patch
+---
+
+Removed uuid as a dependency for @firebase/database

packages/database/package.json

@@ -56,8 +56,7 @@
     "@firebase/app": "0.7.27",
     "rollup": "2.72.1",
     "rollup-plugin-typescript2": "0.31.2",
-    "typescript": "4.2.2",
-    "uuid": "^8.3.2"
+    "typescript": "4.2.2"
   },
   "repository": {
     "directory": "packages/database",