st-tc-emulation merge
textureCompressionBC is just a short-hand to know is all BPTC formats are supported. We're already checking per format, so we don't need this coarser check.
Besides, it's also kinda wrong; textureCompressionBC also requires all BC formats, not just BPTC. In other words, all DXT formats and RGTC formats were missing from the check.