Update dependencies pre release

vendor/github.com/stretchr/testify/http/test_response_writer.go

@@ -1,49 +0,0 @@
-package http
-
-import (
-	"net/http"
-)
-
-// TestResponseWriter DEPRECATED: We recommend you use http://golang.org/pkg/net/http/httptest instead.
-type TestResponseWriter struct {
-
-	// StatusCode is the last int written by the call to WriteHeader(int)
-	StatusCode int
-
-	// Output is a string containing the written bytes using the Write([]byte) func.
-	Output string
-
-	// header is the internal storage of the http.Header object
-	header http.Header
-}
-
-// Header DEPRECATED: We recommend you use http://golang.org/pkg/net/http/httptest instead.
-func (rw *TestResponseWriter) Header() http.Header {
-
-	if rw.header == nil {
-		rw.header = make(http.Header)
-	}
-
-	return rw.header
-}
-
-// Write DEPRECATED: We recommend you use http://golang.org/pkg/net/http/httptest instead.
-func (rw *TestResponseWriter) Write(bytes []byte) (int, error) {
-
-	// assume 200 success if no header has been set
-	if rw.StatusCode == 0 {
-		rw.WriteHeader(200)
-	}
-
-	// add these bytes to the output string
-	rw.Output = rw.Output + string(bytes)
-
-	// return normal values
-	return 0, nil
-
-}
-
-// WriteHeader DEPRECATED: We recommend you use http://golang.org/pkg/net/http/httptest instead.
-func (rw *TestResponseWriter) WriteHeader(i int) {
-	rw.StatusCode = i
-}