Drop summaryf for NEO/py

After previous patch that summary function is no-longer used, is
specific to NEO/py and so should be defined in .nxdtest file in that
project. lab.nexedi.com/kirr/neo will be adjusted correspondingly.

nxdtest

@@ -220,30 +220,6 @@ def tee(fin, fout, buf):
         buf.append(data)
 
 
-# xint converts number from neo/py test output to integer
-def xint(s):
-    s = s.strip()
-    if s == '.':
-        return 0
-    else:
-        return int(s)
-
-
-# extract summary from neo/py test run
-def test_py_summary(stdout):
-    #   Test Module |  run  | unexpected | expected | skipped |  time
-    #   ...
-    #       Summary |  366  |       .    |      9   |     .   | 353.47s
-    m = re.search(r'^\s*summary.*$', stdout, re.M | re.I)
-    assert m is not None, "could not find summary line"
-    summary = m.group(0)
-    _, nrun, nfail, nxfail, nskip, _  = summary.split('|')
-    return {
-            'test_count':       xint(nrun),
-            'error_count':      xint(nfail),
-            'failure_count':    xint(nxfail),
-            'skip_count':       xint(nskip),
-    }
 
 
 if __name__ == '__main__':