Remove unused flag clearing closures

binding.go

@@ -19,7 +19,6 @@ func ValueFlag[I, V any](meta FlagMeta, defaultValue *V, parse func(string) (V,
 		return Flag[I]{binding: binding}
 	}
 	binding.valid = true
-	binding.clear = func(input *I) { set(input, Supplied[V]{}) }
 	binding.prepare = func(values []string) (preparedValue[I], error) {
 		value := fallback
 		supplied := len(values) > 0
@@ -45,7 +44,6 @@ func BoolFlag[I any](meta FlagMeta, defaultValue bool, set func(*I, Supplied[boo
 		return Flag[I]{binding: binding}
 	}
 	binding.valid = true
-	binding.clear = func(input *I) { set(input, Supplied[bool]{}) }
 	binding.prepare = func(values []string) (preparedValue[I], error) {
 		value := defaultValue
 		supplied := len(values) > 0
@@ -73,7 +71,6 @@ func RepeatFlag[I, V any](meta FlagMeta, defaults []V, parse func(string) (V, er
 		return Flag[I]{binding: binding}
 	}
 	binding.valid = true
-	binding.clear = func(input *I) { set(input, Supplied[[]V]{}) }
 	binding.prepare = func(values []string) (preparedValue[I], error) {
 		parsedValues := append([]V(nil), fallback...)
 		supplied := len(values) > 0

command.go

@@ -81,7 +81,6 @@ type flagBinding[I any] struct {
 	repeated         bool
 	boolean          bool
 	prepare          func([]string) (preparedValue[I], error)
-	clear            func(*I)
 	valid            bool
 }
 

docs/roadmap/remediation.md

@@ -253,7 +253,14 @@ without an invented automated content-check promise.
 
 ## R6: Remove the obsolete binding-clear mechanism
 
-**Status:** Open. **Priority:** P3.
+**Status:** Completed (2026-10-11). **Priority:** P3.
+
+**Completed work:** verified the field had only constructor assignments and no
+callers, then removed it and the three unused closures. The removal leaves
+prepared value application, defaults, presence, and binding identity untouched.
+A follow-up source search finds no remaining binding-clear mechanism. All three
+module suites pass offline with Go 1.26.8; formatting and whitespace checks pass.
+No reset hook or public API change was introduced.
 
 **Evidence:** [command.go](../../command.go) retains
 `flagBinding.clear`, and [binding.go](../../binding.go) constructs clear