[DOCUMENTATION] doc fix of job scheduling
[DOCUMENTATION] doc fix of job scheduling

spark.shuffle.service.enabled is spark application related configuration, it is not necessary to set it in yarn-site.xml

Author: Jeff Zhang <zjffdu@apache.org>

Closes #10657 from zjffdu/doc-fix.

(cherry picked from commit 00d9261724feb48d358679efbae6889833e893e0)
Signed-off-by: Marcelo Vanzin <8283fd24ce58e0bb0d6bf349e9064fef42c4d84e@cloudera.com>

haowu80s/spark,haowu80s/spark,haowu80s/spark,haowu80s/spark,haowu80s/spark,haowu80s/spark