public ManualGrpcSecurityMetadataSource remove(final ServiceDescriptor service) {
        requireNonNull(service, "service");
        for (final MethodDescriptor<?, ?> method : service.getMethods()) {
            this.accessMap.remove(method);
        }
        return this;
    }
Removes all access predicates for the all methods of the given service. After that, the default will be used for
those methods.

@param service The service to protect with only the default.
@return This instance for chaining.
@see #setDefault(AccessPredicate)
grpc-server-spring-boot-starter/src/main/java/net/devh/boot/grpc/server/security/check/ManualGrpcSecurityMetadataSource.java