remove unused modules

Author: DanySK

.gitmodules

@@ -1,19 +1,3 @@
-[submodule "workspace/lab09"]
-	path = workspace/lab09
-	url = https://github.com/APICe-at-DISI/OOP-Lab09.git
-	branch = exercises
-[submodule "workspace/lab09-sol"]
-	path = workspace/lab09-sol
-	url = https://github.com/APICe-at-DISI/OOP-Lab09.git
-	branch = solutions
-[submodule "workspace/lab10"]
-	path = workspace/lab10
-	url = https://github.com/APICe-at-DISI/OOP-Lab10.git
-	branch = exercises
-[submodule "workspace/lab10-sol"]
-	path = workspace/lab10-sol
-	url = https://github.com/APICe-at-DISI/OOP-Lab10.git
-	branch = solutions
 [submodule "workspace/lab-csharp"]
 	path = workspace/lab-csharp
 	url = https://github.com/APICe-at-DISI/oop-lab-csharp.git