dependencies cleanup
dependencies cleanup

Unused dependencies removed. End users of Spark don't need
slf4j-simple. They should use their preferrable logging implementation
(log4j, jcl, log back, etc).

nacx/spark,heuermh/spark-1,nkhuyu/spark-1,sebastian1118/spark,rokusr/spark,jacek99/spark,gimlet2/spark,rokusr/spark,hendrosteven/spark,MouettE-SC/spark,tempbottle/spark-1,universsky/spark-1,jabgibson/spark,marstianna/spark,mugizico/spark,guilhermehbueno/spark,gimlet2/spark,gimlet2/spark,martylamb/spark,guilhermehbueno/spark,gutobortolozzo/spark,PYangDizzle/Spark,micsta/spark,MouettE-SC/spark,micsta/spark,greyheart/spark,zeroflag/spark,borud/spark,xdcrafts/spark,micsta/spark,Tradunsky/spark,alexlondon07/spark,perwendel/spark,Tradunsky/spark,guicamest/spark,gimlet2/spark,jabgibson/spark,stylismo/spark,ztx1491/spark,hendrosteven/spark,jacek99/spark,alexlondon07/spark,northcapen/spark,arekkw/spark,ztx1491/spark,Ariel-Isaacm/spark,nacx/spark,stylismo/spark,seetharamireddy540/spark,martylamb/spark,nkhuyu/spark-1,opsonsy/spark,stylismo/spark,arekkw/spark,opsonsy/spark,gutobortolozzo/spark,universsky/spark-1,despegar/spark,guicamest/spark,seetharamireddy540/spark,perwendel/spark,borud/spark,tempbottle/spark-1,despegar/spark,northcapen/spark,perwendel/spark,ganger85/spark,marstianna/spark,heuermh/spark-1,xdcrafts/spark,rokusr/spark,sebastian1118/spark,stylismo/spark,mugizico/spark,ganger85/spark,PYangDizzle/Spark,Ariel-Isaacm/spark,MouettE-SC/spark,zeroflag/spark,greyheart/spark