Remove support for sparse conversions for CUDA 6.5 and older
Remove support for sparse conversions for CUDA 6.5 and older

munnybearz/arrayfire,shehzan10/arrayfire,umar456/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,9prady9/arrayfire,umar456/arrayfire,shehzan10/arrayfire,shehzan10/arrayfire,arrayfire/arrayfire,9prady9/arrayfire,munnybearz/arrayfire,umar456/arrayfire,umar456/arrayfire,arrayfire/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,munnybearz/arrayfire,shehzan10/arrayfire