Remove now-unused PY_TEST guard

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

Makefile

@@ -62,9 +62,7 @@ test:
 	 trap "kill $${PSTREE_SLEEP_PID}" SIGINT SIGTERM EXIT; \
 	 timeout --foreground $(TEST_TIMEOUT2) \
 		 dune runtest --profile=$(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)