Revert "Use RedirectSlashes middleware by default Goa mux (#3366)"

This reverts commit 4df75cd.

http/mux.go

@@ -8,7 +8,6 @@ import (
 	"regexp"
 
 	chi "github.com/go-chi/chi/v5"
-	"github.com/go-chi/chi/v5/middleware"
 )
 
 type (
@@ -80,9 +79,6 @@ type (
 // NewMuxer returns a Muxer implementation based on a Chi router.
 func NewMuxer() ResolverMuxer {
 	r := chi.NewRouter()
-	// RedirectSlashes must be mounted at the top level of the router.
-	// See. https://github.com/go-chi/chi/blob/1129e362d6cce6e3805e3bc8dfbaeb34b5129789/middleware/strip_test.go#L105-L107
-	r.Use(middleware.RedirectSlashes)
 	r.NotFound(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		ctx := context.WithValue(req.Context(), AcceptTypeKey, req.Header.Get("Accept"))
 		enc := ResponseEncoder(ctx, w)

http/mux_test.go

@@ -227,16 +227,6 @@ func TestResolvePattern(t *testing.T) {
 			w := httptest.NewRecorder()
 			mux.ServeHTTP(w, req)
 			assert.True(t, called)
-			// Make sure the URL with a trailing slash is redirected.
-			called = false // Reset.
-			req, _ = http.NewRequest("GET", c.URL+"/", nil)
-			w = httptest.NewRecorder()
-			mux.ServeHTTP(w, req)
-			assert.Equal(t, http.StatusMovedPermanently, w.Code)
-			req, _ = http.NewRequest("GET", w.Header().Get("Location"), nil)
-			w = httptest.NewRecorder()
-			mux.ServeHTTP(w, req)
-			assert.True(t, called)
 		})
 	}
 }