Removed redundant logging in the Master.
Removed redundant logging in the Master.

Review: https://reviews.apache.org/r/26203

zmalik/mesos,craimbert/mesos,abudnik/mesos,chhsia0/mesos,chhsia0/mesos,chhsia0/mesos,Aman-Jain-14/customizedMesos,neilconway/mesos,gsantovena/mesos,zmalik/mesos,zmalik/mesos,Aman-Jain-14/customizedMesos,neilconway/mesos,dforsyth/mesos,Gilbert88/mesos,kaysoky/mesos,abudnik/mesos,craimbert/mesos,kaysoky/mesos,abudnik/mesos,dforsyth/mesos,zmalik/mesos,zmalik/mesos,andschwa/mesos,yuquanshan/customizedMesos,zmalik/mesos,andschwa/mesos,craimbert/mesos,andschwa/mesos,jpeach/mesos,verizonlabs/mesos,Gilbert88/mesos,andschwa/mesos,verizonlabs/mesos,yuquanshan/customizedMesos,abudnik/mesos,yuquanshan/customizedMesos,Gilbert88/mesos,reneploetz/mesos,abudnik/mesos,reneploetz/mesos,dforsyth/mesos,asamerh4/mesos,Gilbert88/mesos,reneploetz/mesos,chhsia0/mesos,kaysoky/mesos,jpeach/mesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos,asamerh4/mesos,kaysoky/mesos,Gilbert88/mesos,dforsyth/mesos,yuquanshan/customizedMesos,neilconway/mesos,craimbert/mesos,gsantovena/mesos,andschwa/mesos,Gilbert88/mesos,asamerh4/mesos,gsantovena/mesos,zmalik/mesos,asamerh4/mesos,neilconway/mesos,kaysoky/mesos,craimbert/mesos,verizonlabs/mesos,verizonlabs/mesos,jpeach/mesos,abudnik/mesos,neilconway/mesos,kaysoky/mesos,verizonlabs/mesos,andschwa/mesos,verizonlabs/mesos,asamerh4/mesos,asamerh4/mesos,neilconway/mesos,chhsia0/mesos,craimbert/mesos,yuquanshan/customizedMesos,andschwa/mesos,reneploetz/mesos,gsantovena/mesos,kaysoky/mesos,verizonlabs/mesos,reneploetz/mesos,Aman-Jain-14/customizedMesos,jpeach/mesos,chhsia0/mesos,jpeach/mesos,Aman-Jain-14/customizedMesos,gsantovena/mesos,abudnik/mesos,chhsia0/mesos,dforsyth/mesos,jpeach/mesos,asamerh4/mesos,craimbert/mesos,reneploetz/mesos,dforsyth/mesos,neilconway/mesos,Aman-Jain-14/customizedMesos,gsantovena/mesos,reneploetz/mesos,dforsyth/mesos,Gilbert88/mesos,Aman-Jain-14/customizedMesos,gsantovena/mesos,jpeach/mesos,Aman-Jain-14/customizedMesos