remove pickle test
remove pickle test

jakirkham/dask,pombredanne/dask,jcrist/dask,vikhyat/dask,marianotepper/dask,dask/dask,cowlicks/dask,esc/dask,hainm/dask,simudream/dask,blaze/dask,mikegraham/dask,marianotepper/dask,freeman-lab/dask,wiso/dask,wiso/dask,vikhyat/dask,mraspaud/dask,clarkfitzg/dask,gameduell/dask,cpcloud/dask,esc/dask,jayhetee/dask,mrocklin/dask,PhE/dask,clarkfitzg/dask,chrisbarber/dask,jayhetee/dask,jcrist/dask,ContinuumIO/dask,mrocklin/dask,ContinuumIO/dask,blaze/dask,mraspaud/dask,simudream/dask,freeman-lab/dask,PhE/dask,ssanderson/dask,pombredanne/dask,ssanderson/dask,hainm/dask,dask/dask,jakirkham/dask