FIX: removed submodules not needed

Author: 9and3

.gitmodules

@@ -2,19 +2,6 @@
 	path = deps/googletest
 	url = https://github.com/google/googletest
 	branch = main
-[submodule "deps/open3d"]
-	path = deps/open3d
-	url = https://github.com/diffCheckOrg/submodule-open3d.git
-	branch = main
 [submodule "deps/eigen"]
 	path = deps/eigen
-	url = https://gitlab.com/libeigen/eigen.git
-[submodule "deps/fmt"]
-	path = deps/fmt
-	url = https://github.com/fmtlib/fmt.git
-[submodule "deps/libigl"]
-	path = deps/libigl
-	url = https://github.com/libigl/libigl.git
-[submodule "deps/glfw"]
-	path = deps/glfw
-	url = https://github.com/glfw/glfw.git
+	url = https://gitlab.com/libeigen/eigen.git