Revert "Always prefer /usr/local/bin"
Revert "Always prefer /usr/local/bin"

This reverts commit 1c44509bb403476afc8bfc526ab490c078562d68.

orange-cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,orange-cloudfoundry/buildpacks-ci,orange-cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci,cloudfoundry/buildpacks-ci