removed docker provider

Author: CSL-Answer

terraform/versions.tf

@@ -16,10 +16,5 @@ terraform {
       source  = "hashicorp/random"
       version = ">= 3.4.3"
     }
-
-    docker = {
-      source  = "kreuzwerker/docker"
-      version = "~> 2.13.0"
-    }
   }
 }