remove psr/log dep, it is not used.

makasim · makasim · commit 26843ba6e566 · 2017-08-16T10:38:27.000+03:00
diff --git a/composer.json b/composer.json
@@ -6,8 +6,7 @@
     "license": "MIT",
     "require": {
         "php": ">=5.6",
-        "queue-interop/queue-interop": "^0.6@dev",
-        "psr/log": "^1"
+        "queue-interop/queue-interop": "^0.6@dev"
     },
     "require-dev": {
         "phpunit/phpunit": "~5.4.0",
