DOCX Input: Dont error out when the input document contains a hyperlink that spans multiple paragraphs. Fixes #1474499 [Private bug](https://bugs.launchpad.net/calibre/+bug/1474499)

src/calibre/ebooks/docx/to_html.py

@@ -493,7 +493,13 @@ class Convert(object):
         wrapper.tail = elems[-1].tail
         elems[-1].tail = None
         for elem in elems:
-            p.remove(elem)
+            try:
+                p.remove(elem)
+            except ValueError:
+                # Probably a hyperlink that spans multiple
+                # paragraphs,theoretically we should break this up into
+                # multiple hyperlinks, but I can't be bothered.
+                elem.getparent().remove(elem)
             wrapper.append(elem)
         return wrapper