Revert "Move blackfire secrets in the proper place"

This reverts commit d569b06.

Author: Lukasz Tulikowski

.env

@@ -15,3 +15,9 @@ DaTABASE_URL=postgres://symfony:symfony@postgres/symfony
 ###> MySQL ###
 # DATABASE_URL=mysql://root:root@mysql:3306/symfony
 ###< doctrine/doctrine-bundle ###
+
+###> blackfire.io secrets ~> replace with yours SECRETS #####
+BLACKFIRE_CLIENT_ID=d29ef9e1-2f41-447c-aa5f-026f7970ead6
+BLACKFIRE_CLIENT_TOKEN=e49229d406cc07b0dc4672aadb2d16636c694018ee4e4fd12a85aef0073a46eb
+BLACKFIRE_SERVER_ID=0ee01eff-ef1e-4874-9fb5-42e9fed8c66d
+BLACKFIRE_SERVER_TOKEN=c777e5620cbb9045b8c8072371f9350ee15930fc5d3c412f540f09ff6b072cea