Python: Remove intermediary steps from taint-test

These were leftovers from old way of propagating taint

Author: RasmusWL

python/ql/test/library-tests/frameworks/stdlib/test_re.py

@@ -30,16 +30,13 @@
     tainted_match[0], # $ tainted
     tainted_match["key"], # $ tainted
 
-    tainted_match.groups(), # $ MISSING: tainted
     tainted_match.groups()[0], # $ tainted
-    tainted_match.groupdict(), # $ MISSING: tainted
     tainted_match.groupdict()["key"], # $ tainted
 
     re.match(pat, ts).string, # $ tainted
     re.match(ts, "safe").re.pattern, # $ tainted
 
     compiled_pat.match(ts).string, # $ tainted
-    re.compile(ts).match("safe").re, # $ MISSING: tainted
     re.compile(ts).match("safe").re.pattern, # $ tainted
 )
 ensure_not_tainted(