@eduard93:
I agree with the excellent advice offered above. However, to answer your question, yes, it is possible to remove images on conversion. Look into the feature in Preferences > Conversion > Common Options > Search & Replace.
With a bit of trial and error, you should be able to find a regular expression to find <img> tags and replace them with nothing. In fact, I just tested with expression <img.*?>
Calibre removed the tag and the corresponding image as I converted from ePub to AZW3. Consider instead of replacing with nothing, it might be helpful to replace with a text box "image removed here" to clarify possible gaps in meaning.