[SPARK-7721][INFRA][FOLLOW-UP] Remove cloned coverage repo after posting HTMLs
[SPARK-7721][INFRA][FOLLOW-UP] Remove cloned coverage repo after posting HTMLs

## What changes were proposed in this pull request?

This PR proposes to remove cloned `pyspark-coverage-site` repo.

it doesn't looks a problem in PR builder but somehow it's problematic in `spark-master-test-sbt-hadoop-2.7`.

## How was this patch tested?

Jenkins.

Closes #23729 from HyukjinKwon/followup-coverage.

Lead-authored-by: Hyukjin Kwon <2680965ad5aae29275c8fb10150cb10f5554e78b@apache.org>
Co-authored-by: shane knapp <7efea8ff96963f31a197482a2c99b97267cab9c8@gmail.com>
Signed-off-by: HyukjinKwon <2680965ad5aae29275c8fb10150cb10f5554e78b@apache.org>

gengliangwang/spark,srowen/spark,mahak/spark,holdenk/spark,apache/spark,ConeyLiu/spark,wangyum/spark,mahak/spark,srowen/spark,skonto/spark,BryanCutler/spark,apache/spark,wangyum/spark,taroplus/spark,HyukjinKwon/spark,BryanCutler/spark,bdrillard/spark,bdrillard/spark,jkbradley/spark,maropu/spark,nchammas/spark,zero323/spark,cloud-fan/spark,nchammas/spark,milliman/spark,apache/spark,wangmiao1981/spark,WeichenXu123/spark,skonto/spark,techaddict/spark,zero323/spark,jkbradley/spark,HyukjinKwon/spark,BryanCutler/spark,JoshRosen/spark,rezasafi/spark,holdenk/spark,zzcclp/spark,dongjoon-hyun/spark,zero323/spark,techaddict/spark,goldmedal/spark,HyukjinKwon/spark,srowen/spark,spark-test/spark,WeichenXu123/spark,WeichenXu123/spark,cloud-fan/spark,wangmiao1981/spark,zzcclp/spark,rednaxelafx/apache-spark,BryanCutler/spark,apache/spark,jkbradley/spark,chuckchen/spark,holdenk/spark,shaneknapp/spark,zuotingbing/spark,chuckchen/spark,vinodkc/spark,milliman/spark,dbtsai/spark,shuangshuangwang/spark,nchammas/spark,witgo/spark,vinodkc/spark,kiszk/spark,pgandhi999/spark,caneGuy/spark,kevinyu98/spark,kiszk/spark,kiszk/spark,bdrillard/spark,jkbradley/spark,witgo/spark,rednaxelafx/apache-spark,dongjoon-hyun/spark,witgo/spark,actuaryzhang/spark,srowen/spark,milliman/spark,mahak/spark,JoshRosen/spark,zuotingbing/spark,ptkool/spark,zuotingbing/spark,vinodkc/spark,mahak/spark,zzcclp/spark,hvanhovell/spark,rezasafi/spark,ueshin/apache-spark,darionyaphet/spark,kiszk/spark,skonto/spark,xuanyuanking/spark,mahak/spark,matthewfranglen/spark,maropu/spark,xuanyuanking/spark,goldmedal/spark,shaneknapp/spark,kevinyu98/spark,ptkool/spark,ueshin/apache-spark,taroplus/spark,rednaxelafx/apache-spark,darionyaphet/spark,ptkool/spark,darionyaphet/spark,cloud-fan/spark,apache/spark,ConeyLiu/spark,spark-test/spark,ConeyLiu/spark,kevinyu98/spark,milliman/spark,cloud-fan/spark,bdrillard/spark,jiangxb1987/spark,techaddict/spark,rezasafi/spark,spark-test/spark,chuckchen/spark,jiangxb1987/spark,wangyum/spark,wangyum/spark,dbtsai/spark,wangyum/spark,ptkool/spark,skonto/spark,dongjoon-hyun/spark,wangmiao1981/spark,srowen/spark,zuotingbing/spark,chuckchen/spark,jiangxb1987/spark,xuanyuanking/spark,maropu/spark,goldmedal/spark,shaneknapp/spark,chuckchen/spark,ptkool/spark,wangyum/spark,jiangxb1987/spark,taroplus/spark,zero323/spark,shaneknapp/spark,wzhfy/spark,BryanCutler/spark,hvanhovell/spark,actuaryzhang/spark,shuangshuangwang/spark,darionyaphet/spark,hvanhovell/spark,BryanCutler/spark,zzcclp/spark,wzhfy/spark,hvanhovell/spark,darionyaphet/spark,maropu/spark,caneGuy/spark,caneGuy/spark,ptkool/spark,HyukjinKwon/spark,zero323/spark,milliman/spark,kiszk/spark,bdrillard/spark,techaddict/spark,xuanyuanking/spark,ConeyLiu/spark,wangyum/spark,nchammas/spark,dongjoon-hyun/spark,rezasafi/spark,actuaryzhang/spark,holdenk/spark,JoshRosen/spark,maropu/spark,maropu/spark,ueshin/apache-spark,nchammas/spark,xuanyuanking/spark,HyukjinKwon/spark,HyukjinKwon/spark,skonto/spark,spark-test/spark,skonto/spark,jiangxb1987/spark,rednaxelafx/apache-spark,bdrillard/spark,kiszk/spark,vinodkc/spark,mahak/spark,zzcclp/spark,rednaxelafx/apache-spark,darionyaphet/spark,BryanCutler/spark,jkbradley/spark,nchammas/spark,milliman/spark,actuaryzhang/spark,JoshRosen/spark,goldmedal/spark,taroplus/spark,rezasafi/spark,dbtsai/spark,apache/spark,taroplus/spark,goldmedal/spark,jkbradley/spark,xuanyuanking/spark,caneGuy/spark,ueshin/apache-spark,maropu/spark,apache/spark,pgandhi999/spark,pgandhi999/spark,xuanyuanking/spark,techaddict/spark,pgandhi999/spark,jkbradley/spark,kiszk/spark,wangmiao1981/spark,zzcclp/spark,dongjoon-hyun/spark,witgo/spark,witgo/spark,shuangshuangwang/spark,WeichenXu123/spark,caneGuy/spark,actuaryzhang/spark,HyukjinKwon/spark,hvanhovell/spark,gengliangwang/spark,cloud-fan/spark,gengliangwang/spark,holdenk/spark,darionyaphet/spark,techaddict/spark,rezasafi/spark,shuangshuangwang/spark,bdrillard/spark,dongjoon-hyun/spark,taroplus/spark,holdenk/spark,dongjoon-hyun/spark,gengliangwang/spark,ConeyLiu/spark,shaneknapp/spark,zuotingbing/spark,JoshRosen/spark,WeichenXu123/spark,JoshRosen/spark,vinodkc/spark,wangmiao1981/spark,shuangshuangwang/spark,ConeyLiu/spark,dbtsai/spark,hvanhovell/spark,chuckchen/spark,shaneknapp/spark,gengliangwang/spark,pgandhi999/spark,vinodkc/spark,nchammas/spark,wangmiao1981/spark,dbtsai/spark,kevinyu98/spark,spark-test/spark,skonto/spark,vinodkc/spark,techaddict/spark,kevinyu98/spark,caneGuy/spark,zero323/spark,actuaryzhang/spark,JoshRosen/spark,chuckchen/spark,kevinyu98/spark,dbtsai/spark,zero323/spark,wzhfy/spark,cloud-fan/spark,goldmedal/spark,witgo/spark,cloud-fan/spark,wzhfy/spark,kevinyu98/spark,spark-test/spark,pgandhi999/spark,shuangshuangwang/spark,shuangshuangwang/spark,pgandhi999/spark,zuotingbing/spark,gengliangwang/spark,ueshin/apache-spark,goldmedal/spark,shaneknapp/spark,caneGuy/spark,ueshin/apache-spark,ueshin/apache-spark,rednaxelafx/apache-spark,actuaryzhang/spark,hvanhovell/spark,srowen/spark,spark-test/spark,jiangxb1987/spark,taroplus/spark,wangmiao1981/spark,wzhfy/spark,ConeyLiu/spark,witgo/spark,rezasafi/spark,gengliangwang/spark,jiangxb1987/spark,holdenk/spark,wzhfy/spark,rednaxelafx/apache-spark,zzcclp/spark,WeichenXu123/spark,ptkool/spark,dbtsai/spark,WeichenXu123/spark,zuotingbing/spark,srowen/spark,wzhfy/spark,milliman/spark,mahak/spark