The "right way" at http://indesignsecrets.com/converting-text-to-outlines-the-right-way.p hp notwithstanding, to convert a table such that no font information is stored when exporting to PDF, just follow these steps:
This leaves a table with no text in it (so no font information will be written for the table) behind your text converted to outlines.
Similarly for textboxes, if you click on the textbox frame instead of selecting the text itself, the result of Type > Create Outlines will leave you with only outlines and no font information to be written to the PDF. If you instead just select the text, even if it appears you have selected all the text, you can still end up with font information in your PDF.
Yes, there is still a need these days in some instances to deliver PDF's with no font information, all text converted to outlines or "curves".
This was tested using InDesign CS5.5.
If you need to convert text (or strokes) to outline I would use Illustrator. But be aware, it is not a recommended workflow to deliver PDFs for printing, you should always use pdfs with embedded fonts, if the printer does not accept embedded fonts look for a different one. This described workaround/workflow is only for special cases as the described:
1. Export the PDF from InDesign, best as PDF/X4
2. Open Adobe Illustrator, create a new empty document in the workspace you will need it.
3. Place the exported PDF, but be aware to link it. If you embedd or open it you will destroy any font information! Don't embedd it!
4. Adjust the artboard to the graphic
5. Object > Flatten transparency, select Font to Outline and Strokes if needed
6. Save EPS according to the standard you need.
You may not see this reply considering the posts were from a while ago, but I just found the string today when I was baffled on how to get the text in a table I had made to outline and not show as still having text in the PDF I made. Your method of converting the text as a frame and then deleting the editable text below worked, b-u-t I had to do an additional step.
When I deleted the editable text below it caused the table to move the rows up since there was not text in them anymore. I corrected it by simply pulling down the cells to their correct position, but it did leave me wondering if perhaps there was another setting - maybe in the table - I needed to change so the cells would stay in place?
So thanks and it worked. Just wondered if I should have done that last part differently.