refs #13668 - removes pre-{install,update}-cmd of composer.json

* outsourcing of composer run-script phpcs-finc call to deployment hook for alpha

composer.json

@@ -96,8 +96,6 @@
             "vendor/bin/phpcs --standard=tests/finc/phpcs.xml"
         ],
         "post-install-cmd": "@phing-install-dependencies",
-        "post-update-cmd": "@phing-install-dependencies",
-        "pre-install-cmd": "@phpcs-finc",
-        "pre-update-cmd": "@phpcs-finc"
+        "post-update-cmd": "@phing-install-dependencies"
     }
 }