tests: remove some redundant code in run-tests

These two lines also happen below if "r" is truthy, which it is in
this case since it's equal to "retry".

Differential Revision: https://phab.mercurial-scm.org/D3878

tests/run-tests.py

@@ -1490,8 +1490,6 class TTest(Test):
                             r = '' # Warn only this line.
                         elif r == "retry":
                             postout.append(b'  ' + el)
-                            els.pop(i)
-                            break
                         else:
                             log('\ninfo, unknown linematch result: %r\n' % r)
                             r = False