removes leftovers from old port

lib/buffer/reflow_strategy.dart

@@ -10,38 +10,4 @@ abstract class ReflowStrategy {
   Buffer get buffer => _buffer;
 
   void reflow(int newCols, int newRows, int oldCols, int oldRows);
-
-  static int getWrappedLineTrimmedLengthFromCircularList(
-      CircularList<BufferLine> lines, int row, int cols) {
-    return getWrappedLineTrimmedLengthFromLine(
-        lines[row], row == lines.length - 1 ? null : lines[row + 1], cols);
-  }
-
-  static int getWrappedLineTrimmedLengthFromLines(
-      List<BufferLine> lines, int row, int cols) {
-    return getWrappedLineTrimmedLengthFromLine(
-        lines[row], row == lines.length - 1 ? null : lines[row + 1], cols);
-  }
-
-  static int getWrappedLineTrimmedLengthFromLine(
-      BufferLine? line, BufferLine? nextLine, int cols) {
-    if (line == null) {
-      return 0;
-    }
-    if (nextLine == null) {
-      return line.getTrimmedLength(cols);
-    }
-
-    // Detect whether the following line starts with a wide character and the end of the current line
-    // is null, if so then we can be pretty sure the null character should be excluded from the line
-    // length]
-    final endsInNull =
-        !(line.cellHasContent(cols - 1)) && line.cellGetWidth(cols - 1) == 1;
-    final followingLineStartsWithWide = nextLine.cellGetWidth(0) == 2;
-
-    if (endsInNull && followingLineStartsWithWide) {
-      return cols - 1;
-    }
-    return cols;
-  }
 }