fix: remove version from composer.json

Author: williamdes

composer.json

@@ -5,7 +5,6 @@
     "type": "library",
     "readme": "https://github.com/wdes/php-I18n-l10n/blob/master/README.md",
     "license": "MPL-2.0",
-    "version": "2.1.0",
     "support": {
         "email": "williamdes@wdes.fr",
         "issues": "https://github.com/wdes/php-I18n-l10n/issues",