hosts: homes: mousqueton: disable 'git' package

I had some troubles with `git` once again...

This reverts commit 13769429f6.

hosts/homes/ambroisie@mousqueton/default.nix

@@ -1,5 +1,5 @@
 # Google Cloudtop configuration
-{ ... }:
+{ lib, pkgs, ... }:
 {
   # Google specific configuration
   home.homeDirectory = "/usr/local/google/home/ambroisie";
@@ -13,6 +13,8 @@
     LD_PRELOAD = "/lib/x86_64-linux-gnu/libnss_cache.so.2\${LD_PRELOAD:+:}$LD_PRELOAD";
   };
 
+  programs.git.package = lib.mkForce pkgs.emptyDirectory;
+
   # I use scripts that use the passthrough sequence often on this host
   my.home.tmux.enablePassthrough = true;
 }