Revert "suppress deprecation warnings from nan"
Revert "suppress deprecation warnings from nan"

This reverts commit 77ad8f0880040fef4f5c55c9628ff821f9427334.

royaltm/node-murmurhash-native,royaltm/node-murmurhash-native,royaltm/node-murmurhash-native,royaltm/node-murmurhash-native,royaltm/node-murmurhash-native,royaltm/node-murmurhash-native