[Mellanox] Fix the memory leak in mlnx-sfpd#3128

Merged

liat-grozovik merged 2 commits intosonic-net:masterfrom

stephenxs:fix-mlnx-sfpd-leak

Jul 9, 2019

Commits on Jul 8, 2019

fix the memory leak in on_pmpe. objects created via sx_api having convention new_<type_name> should be release explicitly via delete_<type_name>.
Stephen Sun
committed
avoid duplicate code.
Stephen Sun
committed