build: remove wscript
build: remove wscript

node-waf was deprecated in v0.8 and removed in v0.10.  Pre-v0.10 node.js
versions are no longer supported as of commit 8bfd1023 so there is no
point in keeping the node-waf build script around.

pandeysoni/node-heapdump,pandeysoni/node-heapdump,pandeysoni/node-heapdump,pandeysoni/node-heapdump