Remove authors from composer.json

Appwrite is all about open source and community. To emphasize this, we
want to remove all authors from our libraries. This will display that
all of our open source work is a collective effort by the Appwrite team
and community.

Author: stnguyen90

composer.json

@@ -5,15 +5,6 @@
     "keywords": ["php", "framework", "upf", "utopia", "migration"],
     "license": "MIT",
     "minimum-stability": "stable",
-    "authors": [{
-            "name": "Eldad Fux",
-            "email": "eldad@appwrite.io"
-        },
-        {
-            "name": "Bradley Schofield",
-            "email": "bradley@appwrite.io"
-        }
-    ],
     "autoload": {
         "psr-4": {
             "Utopia\\Migration\\": "src/Migration"