Remove submodules (too complicated)

.gitmodules

@@ -1,6 +0,0 @@
-[submodule "docker-mailcatcher"]
-	path = mailcatcher
-	url = ssh://git@git.daiko.fr:2222/daiko/docker-mailcatcher.git
-[submodule "docker-phpfpm-dev"]
-	path = phpfpm-dev
-	url = ssh://git@git.daiko.fr:2222/daiko/docker-phpfpm-dev.git

docker-compose.yml

@@ -16,7 +16,7 @@ mailcatcher:
         - 1080:1080
 
 php:
-    build: phpfpm-dev
+    build: phpfpm
     expose:
         - 9000
     volumes: