Remove modules.

Author: mike-matera

.gitmodules

@@ -1,9 +0,0 @@
-[submodule "Modules/nbtest"]
-	path = libs/nbtest
-	url = ../nbtest.git
-[submodule "Modules/nbquiz"]
-	path = libs/nbquiz
-	url = ../nbquiz.git
-[submodule "Modules/jupyter_turtle"]
-	path = libs/jupyter_turtle
-	url = ../jupyter_turtle.git

libs/jupyter_turtle

@@ -10,14 +10,9 @@ dependencies = [
     "jupyterhub>=5.3.0",
     "jupyterlab>=4.4.3",
     "matplotlib>=3.10.3",
-    "nbquiz",
-    "nbtest",
     "notebook>=7.4.3",
     "pandas>=2.2.3",
     "requests>=2.32.3",
+    "nb-unittest",
+    "nb-canvas-quiz",
 ]
-
-[tool.uv.sources]
-jupyter-turtle = { path = "libs/jupyter_turtle" }
-nbtest = { path = "libs/nbtest" }
-nbquiz = { path = "libs/nbquiz" }