hotfix: headers mistakenly added to clean target

- fix `make clean` deleting a number of headers when ENABLE_PYOSYS is set to 1

Author: donn

Makefile

@@ -1131,7 +1131,7 @@ docs: docs/prep
 
 clean: clean-py
 	rm -rf share
-	rm -f $(OBJS) $(GENFILES) $(TARGETS) $(EXTRA_TARGETS) $(EXTRA_OBJS) $(PY_WRAP_INCLUDES)
+	rm -f $(OBJS) $(GENFILES) $(TARGETS) $(EXTRA_TARGETS) $(EXTRA_OBJS)
 	rm -f kernel/version_*.o kernel/version_*.cc
 	rm -f libs/*/*.d frontends/*/*.d passes/*/*.d backends/*/*.d kernel/*.d techlibs/*/*.d
 	rm -rf tests/asicworld/*.out tests/asicworld/*.log