Remove unused filegroup.
Remove unused filegroup.

RELNOTES: None
PiperOrigin-RevId: 179760609

meteorcloudy/bazel,akira-baruah/bazel,werkt/bazel,aehlig/bazel,ButterflyNetwork/bazel,dslomov/bazel-windows,aehlig/bazel,katre/bazel,perezd/bazel,ButterflyNetwork/bazel,dslomov/bazel,perezd/bazel,bazelbuild/bazel,ulfjack/bazel,cushon/bazel,ulfjack/bazel,perezd/bazel,dropbox/bazel,safarmer/bazel,ButterflyNetwork/bazel,werkt/bazel,perezd/bazel,katre/bazel,cushon/bazel,bazelbuild/bazel,werkt/bazel,dslomov/bazel,davidzchen/bazel,meteorcloudy/bazel,werkt/bazel,cushon/bazel,meteorcloudy/bazel,davidzchen/bazel,bazelbuild/bazel,dropbox/bazel,davidzchen/bazel,ulfjack/bazel,aehlig/bazel,werkt/bazel,aehlig/bazel,akira-baruah/bazel,perezd/bazel,twitter-forks/bazel,akira-baruah/bazel,dslomov/bazel-windows,dslomov/bazel-windows,katre/bazel,cushon/bazel,dslomov/bazel,akira-baruah/bazel,katre/bazel,twitter-forks/bazel,safarmer/bazel,cushon/bazel,ulfjack/bazel,davidzchen/bazel,katre/bazel,werkt/bazel,ulfjack/bazel,ButterflyNetwork/bazel,dslomov/bazel,ButterflyNetwork/bazel,bazelbuild/bazel,meteorcloudy/bazel,akira-baruah/bazel,ButterflyNetwork/bazel,dslomov/bazel-windows,davidzchen/bazel,akira-baruah/bazel,katre/bazel,dropbox/bazel,ulfjack/bazel,twitter-forks/bazel,safarmer/bazel,twitter-forks/bazel,twitter-forks/bazel,safarmer/bazel,davidzchen/bazel,safarmer/bazel,davidzchen/bazel,dropbox/bazel,dslomov/bazel,aehlig/bazel,cushon/bazel,aehlig/bazel,perezd/bazel,safarmer/bazel,twitter-forks/bazel,dropbox/bazel,aehlig/bazel,ulfjack/bazel,perezd/bazel,meteorcloudy/bazel,bazelbuild/bazel,meteorcloudy/bazel,dslomov/bazel-windows,bazelbuild/bazel,meteorcloudy/bazel,twitter-forks/bazel,dropbox/bazel,dslomov/bazel,dslomov/bazel,dslomov/bazel-windows