Remove features that actually don't exist from the spec
Remove features that actually don't exist from the spec

 - Changes in the int() function.
 - Changes in the string interpolation operator.

Fixes #4862

RELNOTES: None.
PiperOrigin-RevId: 189626007

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