[qa] create_cache: Delete temp dir when done
[qa] create_cache: Delete temp dir when done

Github-Pull: #8713
Rebased-From: fa27d990ee38a9dce1da71098be010e4a81b18c3

bdelzell/creditcoin-org-creditcoin,gravio-net/graviocoin,lbrtcoin/albertcoin,jl2012/litecoin,zcoinofficial/zcoin,martindale/elements,okinc/bitcoin,experiencecoin/experiencecoin,funkshelper/woodcore,zetacoin/zetacoin,EntropyFactory/creativechain-core,bdelzell/creditcoin-org-creditcoin,shaolinfry/litecoin,lbrtcoin/albertcoin,OmniLayer/omnicore,EntropyFactory/creativechain-core,bitcoinplusorg/xbcwalletsource,oklink-dev/bitcoin,shaolinfry/litecoin,Electronic-Gulden-Foundation/egulden,Electronic-Gulden-Foundation/egulden,bitcoinplusorg/xbcwalletsource,martindale/elements,funkshelper/woodcore,jl2012/litecoin,magacoin/magacoin,oklink-dev/bitcoin,lbrtcoin/albertcoin,funkshelper/woodcore,metacoin/florincoin,zetacoin/zetacoin,metacoin/florincoin,gjhiggins/vcoincore,ShadowMyst/creativechain-core,emc2foundation/einsteinium,lbrtcoin/albertcoin,HashUnlimited/Einsteinium-Unlimited,HashUnlimited/Einsteinium-Unlimited,litecoin-project/litecore-litecoin,litecoin-project/litecore-litecoin,reorder/viacoin,okinc/bitcoin,magacoin/magacoin,OmniLayer/omnicore,lbrtcoin/albertcoin,cannabiscoindev/cannabiscoin420,litecoin-project/litecore-litecoin,metacoin/florincoin,zcoinofficial/zcoin,emc2foundation/einsteinium,itmanagerro/tresting,magacoin/magacoin,emc2foundation/einsteinium,ShadowMyst/creativechain-core,magacoin/magacoin,nlgcoin/guldencoin-official,bdelzell/creditcoin-org-creditcoin,OmniLayer/omnicore,reorder/viacoin,emc2foundation/einsteinium,funkshelper/woodcore,HashUnlimited/Einsteinium-Unlimited,zcoinofficial/zcoin,gjhiggins/vcoincore,Electronic-Gulden-Foundation/egulden,cannabiscoindev/cannabiscoin420,bitcoinplusorg/xbcwalletsource,experiencecoin/experiencecoin,Electronic-Gulden-Foundation/egulden,zcoinofficial/zcoin,itmanagerro/tresting,gravio-net/graviocoin,zetacoin/zetacoin,gjhiggins/vcoincore,bdelzell/creditcoin-org-creditcoin,jl2012/litecoin,nlgcoin/guldencoin-official,lbrtcoin/albertcoin,ShadowMyst/creativechain-core,ShadowMyst/creativechain-core,zcoinofficial/zcoin,gravio-net/graviocoin,jl2012/litecoin,ShadowMyst/creativechain-core,emc2foundation/einsteinium,martindale/elements,zcoinofficial/zcoin,cannabiscoindev/cannabiscoin420,Electronic-Gulden-Foundation/egulden,metacoin/florincoin,experiencecoin/experiencecoin,EntropyFactory/creativechain-core,litecoin-project/litecore-litecoin,okinc/bitcoin,martindale/elements,lbrtcoin/albertcoin,litecoin-project/litecore-litecoin,bitcoinplusorg/xbcwalletsource,ShadowMyst/creativechain-core,oklink-dev/bitcoin,reorder/viacoin,EntropyFactory/creativechain-core,shaolinfry/litecoin,okinc/bitcoin,shaolinfry/litecoin,oklink-dev/bitcoin,magacoin/magacoin,HashUnlimited/Einsteinium-Unlimited,experiencecoin/experiencecoin,gjhiggins/vcoincore,nlgcoin/guldencoin-official,EntropyFactory/creativechain-core,metacoin/florincoin,bdelzell/creditcoin-org-creditcoin,itmanagerro/tresting,zcoinofficial/zcoin,gravio-net/graviocoin,experiencecoin/experiencecoin,bitcoinplusorg/xbcwalletsource,lbrtcoin/albertcoin,okinc/bitcoin,zetacoin/zetacoin,OmniLayer/omnicore,EntropyFactory/creativechain-core,HashUnlimited/Einsteinium-Unlimited,zetacoin/zetacoin,emc2foundation/einsteinium,lbrtcoin/albertcoin,zcoinofficial/zcoin,martindale/elements,oklink-dev/bitcoin,jl2012/litecoin,OmniLayer/omnicore,itmanagerro/tresting,magacoin/magacoin,bitcoinplusorg/xbcwalletsource,gravio-net/graviocoin,jl2012/litecoin,nlgcoin/guldencoin-official,bdelzell/creditcoin-org-creditcoin,martindale/elements,zcoinofficial/zcoin,itmanagerro/tresting,gjhiggins/vcoincore,experiencecoin/experiencecoin,okinc/bitcoin,shaolinfry/litecoin,cannabiscoindev/cannabiscoin420,shaolinfry/litecoin,gjhiggins/vcoincore,zetacoin/zetacoin,cannabiscoindev/cannabiscoin420,lbrtcoin/albertcoin,oklink-dev/bitcoin,nlgcoin/guldencoin-official,reorder/viacoin,OmniLayer/omnicore,HashUnlimited/Einsteinium-Unlimited,Electronic-Gulden-Foundation/egulden,litecoin-project/litecore-litecoin,lbrtcoin/albertcoin,nlgcoin/guldencoin-official,itmanagerro/tresting,gravio-net/graviocoin,lbrtcoin/albertcoin,funkshelper/woodcore,metacoin/florincoin,reorder/viacoin,zcoinofficial/zcoin,reorder/viacoin,cannabiscoindev/cannabiscoin420