- remove unnecessary volumes defines in general docker-compose yml file

- remove php73 in docker compose yml example file
* use only modern composer auth store path

docker-compose.yml.example

@@ -9,12 +9,6 @@ services:
       default:
         aliases:
           - loc.yoursite.ru
-  php73:
-    extends:
-      file: docker-compose.base.yml
-      service: php
-    build:
-      dockerfile: php73.Dockerfile
   php74:
     extends:
       file: docker-compose.base.yml
@@ -27,26 +21,12 @@ services:
       service: php
     build:
       dockerfile: php81.Dockerfile
-  workspace73:
-    extends:
-      file: docker-compose.base.yml
-      service: workspace
-    build:
-      dockerfile: workspace73.Dockerfile
-    secrets:
-      - user_ssh_key
-      - user_known_hosts
-      - composer_auth1
   workspace74:
     extends:
       file: docker-compose.base.yml
       service: workspace
     build:
       dockerfile: workspace74.Dockerfile
-    secrets:
-      - user_ssh_key
-      - user_known_hosts
-      - composer_auth1
   workspace81:
     extends:
       file: docker-compose.base.yml
@@ -61,9 +41,6 @@ services:
     extends:
       file: docker-compose.base.yml
       service: db
-    volumes:
-      - database:/var/lib/mysql
-      - ./hostfiles:/hostfiles
   pma:
     extends:
       file: docker-compose.base.yml
@@ -85,7 +62,5 @@ secrets:
     file: ~/.ssh/id_rsa
   user_known_hosts:
     file: ~/.ssh/known_hosts
-  composer1_auth:
-    file: ~/.composer/auth.json
-  composer2_auth:
+  composer_auth:
     file: ~/.config/composer/auth.json