remove old profiling directory (#1265)

Makefile

@@ -131,20 +131,6 @@ testcov: build-coverage
 .PHONY: all
 all: format build-dev lint test
 
-.PHONY: flame
-flame:
-	@rm -rf perf.data*
-	@rm -rf flame
-	@mkdir -p flame
-	perf record -g profiling/dict_model.py
-	perf script --max-stack 20 | stackcollapse-perf.pl | flamegraph.pl > flame/python.svg
-	perf script --max-stack 20 | stackcollapse-perf.pl > flame/python.txt
-	@rm perf.data
-	JSON=1 perf record -g profiling/dict_model.py
-	perf script --max-stack 20 | stackcollapse-perf.pl | flamegraph.pl > flame/json.svg
-	perf script --max-stack 20 | stackcollapse-perf.pl > flame/json.txt
-	@rm perf.data
-
 .PHONY: clean
 clean:
 	rm -rf `find . -name __pycache__`
@@ -153,7 +139,6 @@ clean:
 	rm -f `find . -type f -name '.*~' `
 	rm -rf src/self_schema.py
 	rm -rf .cache
-	rm -rf flame
 	rm -rf htmlcov
 	rm -rf .pytest_cache
 	rm -rf *.egg-info