Remove unused temps from x86 CodeGenerator

[0xdaryl]

The following fields in compiler/x/codegen/OMRCodeGenerator.hpp are not used in OMR nor any downstream project and can be removed:

  TR::SymbolReference             *_wordConversionTemp;
  TR::SymbolReference             *_doubleWordConversionTemp;
  TR::SymbolReference             *_currentTimeMillisTemp;

[kevHaag]

I am on it.(not anymore)

[jamesgua]

@0xdaryl my mistake: create PR in my forked repo so link it with this issue. Pls help me with proper work flow. Thx!

[0xdaryl]

@jamesgua : I suggest you read through this to understand the git workflow in OMR -> https://github.com/eclipse/omr/blob/master/doc/GitCrashCourse.md

[arshbeerSingh]

Can you please assign this issue to me?

[0xdaryl]

@arshbeerSingh : thanks for your offer to help. Please feel free to contribute a pull request.

I do recommend you first read through the Contributors Guide, and if you're not familiar with git and the workflow for OMR to read through our git Crash Course.