Restrict traefik.toml to static configuration.

pkg/provider/file/fixtures/yaml/simple_traefik_file_01.yml

@@ -1,2 +0,0 @@
-log:
-  level: DEBUG

pkg/provider/file/fixtures/yaml/simple_traefik_file_02.yml

@@ -1,32 +0,0 @@
-providers:
-  file: {}
-http:
-  routers:
-    router1:
-      service: application-1
-    router2:
-      service: application-2
-  services:
-    application-1:
-      loadBalancer:
-        servers:
-          - url: 'http://172.17.0.1:80'
-    application-2:
-      loadBalancer:
-        servers:
-          - url: 'http://172.17.0.2:80'
-    application-3:
-      loadBalancer:
-        servers:
-          - url: 'http://172.17.0.3:80'
-
-tls:
-  certificates:
-    - certFile: integration/fixtures/https/snitest1.com.cert
-      keyFile: integration/fixtures/https/snitest1.com.key
-    - certFile: integration/fixtures/https/snitest2.com.cert
-      keyFile: integration/fixtures/https/snitest2.com.key
-    - certFile: integration/fixtures/https/snitest3.com.cert
-      keyFile: integration/fixtures/https/snitest3.com.key
-    - certFile: integration/fixtures/https/snitest4.com.cert
-      keyFile: integration/fixtures/https/snitest4.com.key