Remove newlines from the HTML table cells 

I use the example which creates the file Sample_07_TemplateCloneRow.docx. However in HTML and PDF you see the newlines in the table cells.

```html
<tr>
<td>
<p></p>
<p><span style="font-family: 'Calibri';">Value 1</span></p>
<p><span style="font-family: 'Calibri';">:</span></p>
</td>
<td>
<p><span style="font-family: 'Calibri'; font-weight: bold;">Sun</span></p>
</td>
</tr>
```

This patch will remove these <p>s inside of the td tags.. Then the table cells in the docx will look the same as in the generated HTML and PDF files.