cmd/cue: remove mention of CUE_EXPERIMENT=modules from help

It doesn't make sense to mention the experiment when it cannot
be disabled.

Signed-off-by: Roger Peppe <[email protected]>
Change-Id: I1ad2a9eaa2d9b99a4e265734ce1286e442aeea53
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1200582
Reviewed-by: Daniel Martí <[email protected]>
TryBot-Result: CUEcueckoo <[email protected]>
Unity-Result: CUE porcuepine <[email protected]>

Author: rogpeppe

cmd/cue/cmd/help.go

@@ -312,9 +312,6 @@ If an environment variable is unset or empty, sensible default setting is used.
 	CUE_EXPERIMENT
 		Comma-separated list of experiment flags to enable or disable:
 
-		modules (default true)
-			Enable support for the Modules and package management proposal
-			as described in https://cuelang.org/discussion/2939.
 		evalv3
 			Enable the new CUE evaluator, addressing performance issues
 			and bringing a better disjunction algorithm.

cue/load/config.go

@@ -288,11 +288,9 @@ type Config struct {
 
 	// Registry is used to fetch CUE module dependencies.
 	//
-	// When nil, if the modules experiment is enabled
-	// (CUE_EXPERIMENT=modules), [modconfig.NewRegistry]
-	// will be used to create a registry instance using the
-	// usual cmd/cue conventions for environment variables
-	// (but see the Env field below).
+	// When nil, [modconfig.NewRegistry] will be used to create a
+	// registry instance using the usual cmd/cue conventions for
+	// environment variables (but see the Env field below).
 	//
 	// THIS IS EXPERIMENTAL. API MIGHT CHANGE.
 	Registry modconfig.Registry