I removed a couple unnecessary GRASS libs from the GDAL framework. These where not needed for the GRASS plugin to work, but QGIS links to one of them directly.
For now I restored the missing GRASS library in the GDAL framework, but I want to get away from linking to internal bits of the frameworks. QGIS doesn't use GDAL for the GRASS formats, so in future QGIS builds I'll have to think about including it's own copy of the GRASS libraries.
PS. Xcode is having problems linking the GRASS db drivers. I just found that dynamic lookup doesn't help, so OGR can't read GRASS vector attributes. Damn.