Re-sync with internal repository (#1166)

Co-authored-by: Facebook Community Bot <6422482+facebook-github-bot@users.noreply.github.com>

lib/jni/BUCK

@@ -1,18 +0,0 @@
-# Copyright (c) Facebook, Inc. and its affiliates.
-#
-# This source code is licensed under the MIT license found in the
-# LICENSE file in the root directory of this source tree.
-
-load("//tools/build_defs/oss:yoga_defs.bzl", "yoga_cxx_library")
-
-yoga_cxx_library(
-    name = "jni",
-    header_namespace = "",
-    exported_headers = [
-        "jni.h",
-        "real/jni.h",
-    ],
-    force_static = True,
-    preprocessor_flags = ["-fmacro-backtrace-limit=0"],
-    visibility = ["PUBLIC"],
-)