Remove contrived Conditional Piping example

Author: escamoteur

code_samples/lib/command_it/command_chaining_cleanup.dart

@@ -78,37 +78,6 @@ class MultiPipeManager {
 }
 // #endregion cleanup_multiple
 
-// #region cleanup_conditional
-class ConditionalPipeManager {
-  late final sourceCommand = Command.createSync<String, String>(
-    (s) => s,
-    initialValue: '',
-  );
-
-  late final targetCommand = Command.createAsyncNoResult<String>(
-    (s) async => api.saveContent(s),
-  );
-
-  ListenableSubscription? _subscription;
-
-  void enablePipe() {
-    // Only create if not already active
-    _subscription ??= sourceCommand.pipeToCommand(targetCommand);
-  }
-
-  void disablePipe() {
-    _subscription?.cancel();
-    _subscription = null;
-  }
-
-  void dispose() {
-    _subscription?.cancel();
-    sourceCommand.dispose();
-    targetCommand.dispose();
-  }
-}
-// #endregion cleanup_conditional
-
 void main() {
   // Examples compile but don't run
 }

docs/documentation/command_it/command_chaining.md

@@ -137,12 +137,6 @@ The real power comes from combining `pipeToCommand` with [listen_it operators](/
 
 <<< @/../code_samples/lib/command_it/command_chaining_cleanup.dart#cleanup_multiple
 
-### Conditional Piping
-
-Enable/disable pipes at runtime:
-
-<<< @/../code_samples/lib/command_it/command_chaining_cleanup.dart#cleanup_conditional
-
 ## Warning: Circular Pipes
 
 ::: danger Avoid Circular Pipes

docs/es/documentation/command_it/command_chaining.md

@@ -137,12 +137,6 @@ El verdadero poder viene de combinar `pipeToCommand` con [operadores de listen_i
 
 <<< @/../code_samples/lib/command_it/command_chaining_cleanup.dart#cleanup_multiple
 
-### Piping Condicional
-
-Habilita/deshabilita pipes en tiempo de ejecución:
-
-<<< @/../code_samples/lib/command_it/command_chaining_cleanup.dart#cleanup_conditional
-
 ## Advertencia: Pipes Circulares
 
 ::: danger Evita Pipes Circulares