Remove submodules

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "utils"]
-	path = utils
-	url = https://gitlab.inria.fr/whar/packages/latex-utils.git

README.md

@@ -1,19 +1,5 @@
 # Wearable Haptics and Augmented Reality
 
-## Usage
-
-Clone this repository with its submodules:
-
-```
-git clone --recurse-submodules
-```
-
-If you have already cloned the repository, you can update the submodules with:
-
-```
-git submodule --init --update
-```
-
 Compile `main.tex` using either `pdflatex` with `biblatex` or `lualatex` (recommended).
 
 You may need to install the following packages: