git: openjdk/jdk: 8261109: [macOS] Remove disabled warning for JNF in make/autoconf/flags-cflags.m4

[Phil Race]

Changeset: 3bb6a3d2
Author:    Phil Race <prr at openjdk.org>
Date:      2021-02-04 21:00:18 +0000
URL:       https://git.openjdk.java.net/jdk/commit/3bb6a3d2

8261109: [macOS] Remove disabled warning for JNF in make/autoconf/flags-cflags.m4

Reviewed-by: serb, ihse, erikj

! make/autoconf/flags-cflags.m4
! make/modules/java.base/Lib.gmk