Merge pull request #3027 from Pinata-Consulting/makefile-cleanup

makefile: superfluous code cleanup

Author: maliberty

flow/Makefile

@@ -284,12 +284,10 @@ yosys-dependencies: $(YOSYS_DEPENDENCIES)
 
 .PHONY: do-yosys
 do-yosys: $(DONT_USE_SC_LIB)
-	mkdir -p $(RESULTS_DIR) $(LOG_DIR) $(REPORTS_DIR) $(OBJECTS_DIR)
 	$(SCRIPTS_DIR)/synth.sh $(SYNTH_SCRIPT) $(LOG_DIR)/1_1_yosys.log
 
 .PHONY: do-yosys-canonicalize
 do-yosys-canonicalize: yosys-dependencies $(DONT_USE_SC_LIB)
-	mkdir -p $(RESULTS_DIR) $(LOG_DIR) $(REPORTS_DIR) $(OBJECTS_DIR)
 	$(SCRIPTS_DIR)/synth.sh $(SCRIPTS_DIR)/synth_canonicalize.tcl $(LOG_DIR)/1_1_yosys_canonicalize.log
 
 $(RESULTS_DIR)/1_synth.rtlil: $(YOSYS_DEPENDENCIES)