Fixed broken build

Signed-off-by: Vishal Rana <vr@labstack.com>

Author: vishr

.travis.yml

@@ -7,6 +7,5 @@ before_install:
     - go get golang.org/x/tools/cmd/cover
 script:
     - go test -coverprofile=echo.coverprofile
-    - go test -coverprofile=middleware.coverprofile ./middleware
     - $HOME/gopath/bin/gover
     - $HOME/gopath/bin/goveralls -coverprofile=gover.coverprofile -service=travis-ci