Revert "bumped sdk"

This reverts commit 9182785.

Author: Patrick Kaeding

composer.json

@@ -16,8 +16,7 @@
     "require": {
         "php": ">=5.4",
         "guzzlehttp/guzzle": "5.*",
-        "guzzlehttp/cache-subscriber": "0.1.*",
-        "launchdarkly/launchdarkly-php": "0.7.*"
+        "guzzlehttp/cache-subscriber": "0.1.*"
     },
     "require-dev": {
         "phpunit/phpunit": "4.3.*",