[Makefile] Fix redundant instruction.
@@ -307,7 +307,6 @@ itest: bazel-fetch
install-test-setup:
mkdir -p "$(INSTALL_TEST_ROOT)"
rm -f "$(INSTALL_TEST_ROOT)/tests" "$(INSTALL_TEST_ROOT)/tox.ini"
- ln -s "$(INSTALL_TEST_ROOT)"
ln -s "$(ROOT)/tests" "$(INSTALL_TEST_ROOT)"
ln -s "$(ROOT)/tox.ini" "$(INSTALL_TEST_ROOT)"
