Yes, you do not need it (if you aren't a OpenCL developer) and it for sure gives conflicts if you have it installed.
Even if you are an OpenCL developer you need to be very careful where you put the amd app sdk and that oclHashcat does not prioritize those libs over the main 14.9 driver libs you did install (i.e. not having it in the environment paths directly etc) .... or even better: that oclHashcat does not see/can reach those libs at all.
There are several forum posts and wiki sections that warn about those lib conflicts (because of AMD app sdk installations etc).
Even if you are an OpenCL developer you need to be very careful where you put the amd app sdk and that oclHashcat does not prioritize those libs over the main 14.9 driver libs you did install (i.e. not having it in the environment paths directly etc) .... or even better: that oclHashcat does not see/can reach those libs at all.
There are several forum posts and wiki sections that warn about those lib conflicts (because of AMD app sdk installations etc).