Remove now-unused PY_TEST guard

Reported-by: Pau Ruiz Safont <[email protected]>
Signed-off-by: Yann Dirson <[email protected]>

Makefile

@@ -30,9 +30,7 @@ lint:
 
 test:
 	dune runtest --profile=$(PROFILE) --error-reporting=twice -j $(JOBS)
-ifneq ($(PY_TEST), NO)
 	dune build @runtest-python --profile=$(PROFILE)
-endif
 
 stresstest:
 	dune build @stresstest --profile=$(PROFILE) --no-buffer -j $(JOBS)