I would like to keep the "Format" dropdown (i.e. Normal/Heading 1/Heading 2,etc.), but remove the "Styles" dropdown. I see actually on this ckeditor forum that they have done exactly this! I have tried setting config.stylesSet to an empty array and setting it to false, but the dropdown just shows up empty.
What am I missing?

Shoulda waited a bit longer
Shoulda waited a bit longer before posting... ha ha ha. Got it to work with this:
If you want to remove just
If you want to remove just one feature, then config.removeButtons is good, but for you it may be even better to use config.removePlugins in order to remove 'stylescombo' plugin.
Piotrek (Reinmar) Koszuliński
CKEditor JavaScript Developer
--
CKSource - http://cksource.com
--
Follow CKEditor on: Twitter | Facebook | Google+