Remove wercker.yml

Signed-off-by: Aanand Prasad <aanand.prasad@gmail.com>

wercker.yml

@@ -1,12 +0,0 @@
-box: wercker-labs/docker
-build:
-  steps:
-    - script:
-        name: validate DCO
-        code: script/validate-dco
-    - script:
-        name: run tests
-        code: script/test
-    - script:
-        name: build binary
-        code: script/build-linux