Remove unnecessary dependency (psr/log)

Author: Nikita Rybalov

composer.json

@@ -10,7 +10,6 @@
   },
   "require": {
     "plesk/zf1": "1.12.17-patch11",
-    "psr/log": "^1.1",
     "psr/container": "^1.0",
     "psr/http-server-middleware": "^1.0",
     "psr/http-factory": "^1.0"