remove unused includeBuffer

lib/buffer/buffer.dart

@@ -480,9 +480,9 @@ class Buffer {
 
   void resize(int newWidth, int newHeight) {
     if (newWidth > terminal.viewWidth) {
-      for (var line in lines) {
+      lines.forEach((line) {
         line.ensure(newWidth);
-      }
+      });
     }
 
     if (newHeight > terminal.viewHeight) {

lib/utli/circular_list.dart

@@ -46,13 +46,10 @@ class CircularList<T> {
     _length = value;
   }
 
-  void forEach(
-    void Function(T? item, int index) callback, [
-    bool includeBuffer = false,
-  ]) {
+  void forEach(void Function(T item) callback) {
     final length = _length;
     for (int i = 0; i < length; i++) {
-      callback(_array[_getCyclicIndex(i)], i);
+      callback(_array[_getCyclicIndex(i)]!);
     }
   }