Update the comment.

Change-Id: Ic4abbff32f0e8d738db0a55857a92bf9cfadb050
diff --git a/sc/inc/column.hxx b/sc/inc/column.hxx
index e0773aa..290f45b 100644
--- a/sc/inc/column.hxx
+++ b/sc/inc/column.hxx
@@ -125,9 +125,7 @@ class ScColumn
    // values; either the reall text widths or TEXTWIDTH_DIRTY.
    TextWidthType maTextWidths;

    // For now, we store script type values as unsigned shorts. Once
    // multi_type_vector supports char and unsigned char (due in 0.7.2), we
    // can switch to that to save storage space.
    // Script types are stored as unsigned char.
    ScriptType maScriptTypes;

    SCCOL           nCol;