incompatible_dont_enable_host_nonhost_crosstool_features: Do not automatically enable "host" and "nonhost" crosstool features #7407
With the move of C++ rules to use platforms/toolchains (tracked in #6516), we are removing host specific logic. Platforms don't guarantee existence of separate host toolchain, in which case it's not clear which feature to enable, and it can happen that there will be multiple execution platforms, which currently don't have a way to enable a specific feature. My research shows that these Bazel features are actually mostly unused, so instead of coming up with non-trivial solution, we will remove them.
With the flag flipped,