Allow user to delete themselves

Previously users were prevented from removing themselves.

Connect https://github.com/influxdata/chronograf/issues/2711

server/users.go

@@ -225,15 +225,6 @@ func (s *Service) RemoveUser(w http.ResponseWriter, r *http.Request) {
 		Error(w, http.StatusNotFound, err.Error(), s.Logger)
 		return
 	}
-	ctxUser, ok := hasUserContext(ctx)
-	if !ok {
-		Error(w, http.StatusBadRequest, "failed to retrieve user from context", s.Logger)
-		return
-	}
-	if ctxUser.ID == u.ID {
-		Error(w, http.StatusForbidden, "user cannot delete themselves", s.Logger)
-		return
-	}
 	if err := s.Store.Users(ctx).Delete(ctx, u); err != nil {
 		Error(w, http.StatusBadRequest, err.Error(), s.Logger)
 		return

server/users_test.go

@@ -663,8 +663,8 @@ func TestService_RemoveUser(t *testing.T) {
 				},
 				id: "1339",
 			},
-			wantStatus: http.StatusForbidden,
-			wantBody:   `{"code":403,"message":"user cannot delete themselves"}`,
+			wantStatus: http.StatusNoContent,
+			wantBody:   ``,
 		},
 	}
 	for _, tt := range tests {