regenerate interface code on thrift 0.17.0

[tpetracca]

In #432 we manually modified the generated code in order to bump the runtime dependency on libthrift to 0.17.0, so now we can't make changes to thrift and re-generate without having to re-apply the manual changes.

This change updates the code-gen to be generated from thrift 0.17.0, which shouldn't require the manual changes anymore.

In order to install thrift 0.17.0 locally I used an old git commit of the Homebrew source and installed from like this...

homebrew-core tpetracca$ git remote -v
origin	https://github.com/Homebrew/homebrew-core.git (fetch)
origin	https://github.com/Homebrew/homebrew-core.git (push)
### this commit hash is the last change to the thrift formula before they upgrade from 0.17.0 to 0.18.0
homebrew-core tpetracca$ git checkout 8f0b9dde69b560dbffad719e3a341fa3018cca7d
HEAD is now at 8f0b9dde69b thrift: brew style --fix
homebrew-core tpetracca$ brew install ./Formula/thrift.rb
... it installing ...

[tpetracca]

This argument was removed in 0.9.2 for THRIFT-2263 via apache/thrift@acdac81

Before 0.9.2 thrift's java impl did not generate equals() and hashcode() methods for classes by default unless the hashcode flag was set. As of 0.9.2 those methods are generated by default.

[tpetracca]

The csharp generator was deprecated in thrift 0.13.0 and removed in 0.14.0. We don't have any C# cassandra thrift clients, so it doesn't matter.

[rhuffy]

I attempted the codegen locally and it included a license header on each file. Are you intentionally removing those headers?

[rhuffy]

I've also created a homebrew tap that should make it easier install thrift in thrift in the future

brew install rhuffy/thrift/[email protected]