drop importGraph dependency in server

server/lake-manifest.json

@@ -9,24 +9,6 @@
    "manifestFile": "lake-manifest.json",
    "inputRev": "v4.5.0",
    "inherited": false,
-   "configFile": "lakefile.lean"},
-  {"url": "https://github.com/leanprover/lean4-cli",
-   "type": "git",
-   "subDir": null,
-   "rev": "a751d21d4b68c999accb6fc5d960538af26ad5ec",
-   "name": "Cli",
-   "manifestFile": "lake-manifest.json",
-   "inputRev": "main",
-   "inherited": true,
-   "configFile": "lakefile.lean"},
-  {"url": "https://github.com/leanprover-community/import-graph",
-   "type": "git",
-   "subDir": null,
-   "rev": "a6b484980b41aab874fb3113ec5245bd91b625d8",
-   "name": "importGraph",
-   "manifestFile": "lake-manifest.json",
-   "inputRev": "v4.4.0",
-   "inherited": false,
    "configFile": "lakefile.lean"}],
  "name": "GameServer",
  "lakeDir": ".lake"}

server/lakefile.lean

@@ -8,7 +8,7 @@ def leanVersion : String := s!"v{Lean.versionString}"
 
 require std from git "https://github.com/leanprover/std4.git" @ leanVersion
 
-require importGraph from git "https://github.com/leanprover-community/import-graph" @ leanVersion
+-- require importGraph from git "https://github.com/leanprover-community/import-graph" @ leanVersion
 
 lean_lib GameServer