diff --git a/src/calibre/ebooks/pdf/html_writer.py b/src/calibre/ebooks/pdf/html_writer.py
index 1e545bbfd6..365eaed137 100644
--- a/src/calibre/ebooks/pdf/html_writer.py
+++ b/src/calibre/ebooks/pdf/html_writer.py
@@ -697,57 +697,6 @@ def add_pagenum_toc(root, toc, opts, page_number_display_map):
 # Fonts {{{
 
 
-class Range(object):
-
-    __slots__ = ('first', 'last', 'widths', 'sort_order')
-
-    def __init__(self, first, last, widths):
-        self.first, self.last, self.widths = first, last, widths
-        # Sort by first with larger ranges coming before smaller ones
-        self.sort_order = self.first, -self.last
-
-    def __repr__(self):
-        return '({}, {}, {})'.format(self.first, self.last, self.widths)
-
-    def merge(self, r):
-        if r.last <= self.last:
-            return  # is a subset
-        if r.first > self.last:
-            if r.first == self.last + 1 and self.has_single_width == r.has_single_width:
-                if self.has_single_width:
-                    if r.widths[0] == self.widths[0]:
-                        self.last = r.last
-                        return
-                else:
-                    self.last = r.last
-                    delta = self.last - self.first + 1 - len(self.widths)
-                    self.widths.extend(r.widths[-delta:])
-                    return
-            return r
-        if self.has_single_width != r.has_single_width:
-            # make r disjoint
-            delta = self.last + 1 - r.first
-            r.first = self.last + 1
-            if len(r.widths) > 1:
-                del r.widths[:delta]
-            return r if r.widths else None
-        # subsume r into self
-        self.last = r.last
-        if not self.has_single_width:
-            delta = self.last - self.first + 1 - len(self.widths)
-            self.widths.extend(r.widths[-delta:])
-
-    @property
-    def as_item(self):
-        if self.has_single_width:
-            return self.first, self.last, self.widths[0]
-        return self.first, self.widths
-
-    @property
-    def has_single_width(self):
-        return len(self.widths) == 1
-
-
 def all_glyph_ids_in_w_arrays(arrays, as_set=False):
     ans = set()
     for w in arrays: