rhg: enable `rhg status` by default, without config or env opt-in

The full test suite now passes with `hg` pointing to rhg.

Differential Revision: https://phab.mercurial-scm.org/D12162

rust/hg-core/src/config/config.rs

@@ -119,7 +119,6 b' impl Config {'
             b"rhg",
             b"fallback-executable",
         );
-        config.add_for_environment_variable("RHG_STATUS", b"rhg", b"status");
 
         // HGRCPATH replaces user config
         if opt_rc_path.is_none() {

rust/rhg/src/commands/status.rs

@@ -149,15 +149,6 b' impl DisplayStates {'
 }
 
 pub fn run(invocation: &crate::CliInvocation) -> Result<(), CommandError> {
-    let status_enabled_default = false;
-    let status_enabled = invocation.config.get_option(b"rhg", b"status")?;
-    if !status_enabled.unwrap_or(status_enabled_default) {
-        return Err(CommandError::unsupported(
-            "status is experimental in rhg (enable it with 'rhg.status = true' \
-            or enable fallback with 'rhg.on-unsupported = fallback')"
-        ));
-    }
-
     // TODO: lift these limitations
     if invocation.config.get_bool(b"ui", b"tweakdefaults")? {
         return Err(CommandError::unsupported(

tests/run-tests.py

@@ -3228,7 +3228,6 b' class TestRunner(object):'
             # output.
             osenvironb[b'RHG_ON_UNSUPPORTED'] = b'fallback'
             osenvironb[b'RHG_FALLBACK_EXECUTABLE'] = real_hg
-            osenvironb[b'RHG_STATUS'] = b'1'
         else:
             # drop flag for hghave
             osenvironb.pop(b'RHG_INSTALLED_AS_HG', None)