Remove unused src_dir param from run_tests

[l0rinc]

trafficstars

Split out of https://github.com/bitcoin/bitcoin/pull/30454

The src_dir usage was removed in https://github.com/bitcoin/bitcoin/commit/a8a2e364acf55bbe18404ab21f852d52257bcb6d#diff-437d7f6e9f2229879b60aae574a8217f14c643bbf3cfa9225d8011d6d52df00cL598, making the parameter unused.

[hebasto]

We'll proceed with these changes once https://github.com/bitcoin/bitcoin/pull/30454 is landed.

[l0rinc]

I still see the dup library warning on building

I don't expect that to be resolved anytime soon, but at least we've workarounded™ it for fuzzing on mac (was a blocker before)

[pablomartin4btc]

I don't expect that to be resolved anytime soon, but at least we've workarounded™ it for fuzzing on mac (was a blocker before)

I was aware of it, thanks! I also have pending to review #319.

[hebasto]

Since https://github.com/bitcoin/bitcoin/pull/30454 has been merged, further development in this repository no longer makes sense. Please consider moving this PR to the main repository.

[l0rinc]

moved to https://github.com/bitcoin/bitcoin/pull/30733