Remove concurrency level from sample configs
Remove concurrency level from sample configs

Setting concurrency level to 100 often causes problems
dojo4/s3_website,page-io/s3_website,xpekatt/s3_website,page-io/s3_website,xpekatt/s3_website,pathawks/s3_website,WangKaimin/s3_website,WangKaimin/s3_website,SivagnanamCiena/s3_website,pathawks/s3_website,dojo4/s3_website,SivagnanamCiena/s3_website