Remove comment about compiling from source.
Remove comment about compiling from source.

Commit fe188d6 changed this to use the binary package instead.

Closes #8700.

PiperOrigin-RevId: 259355057

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