mysql: Remove the init function (#4229)
mysql: Remove the init function (#4229)


ngaut/tidb,XuHuaiyu/tidb,c4pt0r/tidb,Cofyc/tidb,louishust/tidb,pingcap/tidb,kyle-wang/tidb,mccxj/tidb,c4pt0r/tidb,zimulala/tidb,8cbx/tidb,8cbx/tidb,tiancaiamao/tidb,kyle-wang/tidb,pingcap/tidb,gaocegege/tidb,XuHuaiyu/tidb,yangwenmai/tidb,mccxj/tidb,Nify/tidb,c4pt0r/tidb,cosmtrek/tidb,wusphinx/tidb,ming-relax/tidb,coocood/tidb,CodeRushing/tidb,CodeRushing/tidb,coocood/tidb,ngaut/tidb,louishust/tidb,yuanwhy/tidb,kyle-wang/tidb,pingcap/tidb,cosmtrek/tidb,wusphinx/tidb,EvilMcJerkface/tidb,ming-relax/tidb,c4pt0r/tidb,gaocegege/tidb,pingcap/tidb,spongedu/tidb,Cofyc/tidb,ngaut/tidb,EvilMcJerkface/tidb,c4pt0r/tidb,qiuyesuifeng/tidb,yuanwhy/tidb,zimulala/tidb,c4pt0r/tidb,ngaut/tidb,pingcap/tidb,kyle-wang/tidb,ngaut/tidb,kyle-wang/tidb,qiuyesuifeng/tidb,yangwenmai/tidb,kyle-wang/tidb,Nify/tidb,pingcap/tidb,spongedu/tidb,ngaut/tidb,tiancaiamao/tidb