This ticket comes from BF-24704.

The "minimize jstestfuzz" function is called from "run generated tests", but not all generated tests will clone the jstestfuzz repo resulting in the following error from the BF:

./src/evergreen/jstestfuzz_minimize.sh: line 4: cd: src/jstestfuzz: No such file or directory 

Instead, we should call "minimize jstestfuzz" only when the jstestfuzz directory exists – which is for fuzzer related tasks.