Python: Update all metrics-dependant queries

The ones that no longer require points-to no longer import
`LegacyPointsTo`. The ones that do use the specific
`...MetricsWithPointsTo` classes that are applicable.

python/ql/test/library-tests/ControlFlow/general/Cyclo.ql

@@ -1,5 +1,5 @@
 import python
 private import LegacyPointsTo
 
-from FunctionMetrics func
+from FunctionMetricsWithPointsTo func
 select func.toString(), func.getCyclomaticComplexity()