ARROW-5097: [Packaging][CentOS6] Remove needless dependencies
ARROW-5097: [Packaging][CentOS6] Remove needless dependencies

Author: Kouhei Sutou <kou@clear-code.com>

Closes #4100 from kou/packaging-centos-6-rpm-fix-dependency and squashes the following commits:

e6ed35ebf <Kouhei Sutou>  Remove needless dependencies

icexelloss/arrow,kou/arrow,wesm/arrow,majetideepak/arrow,majetideepak/arrow,majetideepak/arrow,renesugar/arrow,xhochy/arrow,xhochy/arrow,xhochy/arrow,xhochy/arrow,renesugar/arrow,renesugar/arrow,icexelloss/arrow,xhochy/arrow,xhochy/arrow,cpcloud/arrow,renesugar/arrow,laurentgo/arrow,majetideepak/arrow,laurentgo/arrow,icexelloss/arrow,kou/arrow,renesugar/arrow,icexelloss/arrow,laurentgo/arrow,kou/arrow,kou/arrow,cpcloud/arrow,renesugar/arrow,cpcloud/arrow,icexelloss/arrow,icexelloss/arrow,wesm/arrow,apache/arrow,renesugar/arrow,icexelloss/arrow,xhochy/arrow,apache/arrow,apache/arrow,xhochy/arrow,kou/arrow,xhochy/arrow,xhochy/arrow,wesm/arrow,wesm/arrow,cpcloud/arrow,renesugar/arrow,renesugar/arrow,wesm/arrow,kou/arrow,majetideepak/arrow,icexelloss/arrow,laurentgo/arrow,apache/arrow,majetideepak/arrow,xhochy/arrow,kou/arrow,kou/arrow,apache/arrow,cpcloud/arrow,apache/arrow,majetideepak/arrow,icexelloss/arrow,laurentgo/arrow,renesugar/arrow,apache/arrow,renesugar/arrow,wesm/arrow,apache/arrow,laurentgo/arrow,wesm/arrow,xhochy/arrow,laurentgo/arrow,majetideepak/arrow,kou/arrow,laurentgo/arrow,xhochy/arrow,renesugar/arrow,cpcloud/arrow,laurentgo/arrow,apache/arrow,kou/arrow,kou/arrow,cpcloud/arrow,apache/arrow,kou/arrow,laurentgo/arrow,majetideepak/arrow,laurentgo/arrow,kou/arrow,laurentgo/arrow,wesm/arrow,apache/arrow,wesm/arrow,wesm/arrow,wesm/arrow,majetideepak/arrow,cpcloud/arrow,laurentgo/arrow,kou/arrow,wesm/arrow,icexelloss/arrow,laurentgo/arrow,cpcloud/arrow,icexelloss/arrow,wesm/arrow,cpcloud/arrow,xhochy/arrow,renesugar/arrow,majetideepak/arrow,icexelloss/arrow,majetideepak/arrow,wesm/arrow,cpcloud/arrow,laurentgo/arrow,apache/arrow,apache/arrow,xhochy/arrow,cpcloud/arrow,renesugar/arrow,cpcloud/arrow,icexelloss/arrow,icexelloss/arrow,majetideepak/arrow,majetideepak/arrow,renesugar/arrow,apache/arrow,cpcloud/arrow,majetideepak/arrow