[llvm] [BOLT][DWARF] Remove option to write to DWP (PR #100771)

[Alexander Yermolovich via llvm-commits]

ayermolo wrote:

In emitDWOBuilder 
DWARFRewriter::UnitMetaVectorType TUMetaVector;
  DWARFRewriter::UnitMeta CUMI = {0, 0, 0};
  
 Needs to be cleaned up

https://github.com/llvm/llvm-project/pull/100771