tests: remove the custom run-tests.py
This test-runners is a copy from the Mercurial one and slowly drift out of sync.
Use the Mercurial's core test runners instead.
Initialsetup$.$TESTDIR/_exc-util.sh===D.2missingprunetarget(prunein"pushed set")==={{{}}}Markerexistfrom:*A' succeed to A * A'(prune)Commandrun:*hgpushExpectedexchange:*`Aø⇠oA'` * A'(prune)$setupreposD.2creatingtestrepofortestcaseD.2-pulldest-main-pushdestcdinto`main`andproceedwithenvsetup$cdmain$mkcommitA0$hgup-q0$mkcommitBcreatednewhead$mkcommitA1$hgdebugobsolete`getid'desc(A0)'``getid'desc(A1)'`$hgprune-d'0 0'.0filesupdated,0filesmerged,1filesremoved,0filesunresolvedworkingdirectorynowat35b1839966781changesetspruned$hgstrip--hidden-q'desc(A1)'$hglog-G--hidden@35b183996678(draft):B||x28b51eb45704(draft):A0|/oa9bdc8b26820(public):O$hgdebugobsolete28b51eb45704506b5c603decd6bf7ac5e0f6a52f6aa67a7b4baa6fb41b06aed38d5b1201436546e20(ThuJan0100:00:001970+0000){'user':'test'}6aa67a7b4baa6fb41b06aed38d5b1201436546e20{35b1839966785d5703a01607229eea932db42f87}(ThuJan0100:00:001970+0000){'user':'test'}$cd..$cd..ActualTest-------------------------------------$dotestD.2O##RunningtestcaseD.2 # testing echange of "O" (a9bdc8b26820) ## initial state # obstore: main28b51eb45704506b5c603decd6bf7ac5e0f6a52f6aa67a7b4baa6fb41b06aed38d5b1201436546e20(ThuJan0100:00:001970+0000){'user':'test'}6aa67a7b4baa6fb41b06aed38d5b1201436546e20{35b1839966785d5703a01607229eea932db42f87}(ThuJan0100:00:001970+0000){'user':'test'} # obstore: pushdest # obstore: pulldest ## pushing "O" from main to pushdestpushingtopushdestsearchingforchangesnochangesfound##postpushstate#obstore:main28b51eb45704506b5c603decd6bf7ac5e0f6a52f6aa67a7b4baa6fb41b06aed38d5b1201436546e20(ThuJan0100:00:001970+0000){'user':'test'}6aa67a7b4baa6fb41b06aed38d5b1201436546e20{35b1839966785d5703a01607229eea932db42f87}(ThuJan0100:00:001970+0000){'user':'test'} # obstore: pushdest # obstore: pulldest ## pulling "a9bdc8b26820" from main into pulldestpullingfrommainnochangesfound##postpullstate#obstore:main28b51eb45704506b5c603decd6bf7ac5e0f6a52f6aa67a7b4baa6fb41b06aed38d5b1201436546e20(ThuJan0100:00:001970+0000){'user':'test'}6aa67a7b4baa6fb41b06aed38d5b1201436546e20{35b1839966785d5703a01607229eea932db42f87}(ThuJan0100:00:001970+0000){'user':'test'} # obstore: pushdest # obstore: pulldest