Remove old global config and use new static config

integration/fixtures/keep_trailing_slash.toml

@@ -1,23 +1,25 @@
-defaultEntryPoints = ["http"]
-
 keepTrailingSlash = {{ .KeepTrailingSlash }}
+
+[log]
+logLevel = "DEBUG"
+
+
 [entryPoints]
   [entryPoints.http]
   address = ":8000"
 
-logLevel = "DEBUG"
-
-[file]
+[providers]
+   [providers.file]
 
 # rules
 [backends]
   [backends.backend1]
     [backends.backend1.servers.server1]
-    url = "http://172.17.0.2:80"
-    weight = 1
+       url = "http://172.17.0.2:80"
+       weight = 1
 
 [frontends]
   [frontends.frontend1]
-  backend = "backend1"
-    [frontends.frontend1.routes.test_1]
-    rule = "Path:/test/foo"
+     backend = "backend1"
+     [frontends.frontend1.routes.test_1]
+        rule = "Path:/test/foo"