Revert "[lldb] Don't create instance of SymbolFileDWARFDebugMap for non-Mach-O files (#139170)"

This reverts commit 3096f87.

Reverting this commit because it depends on another PR
that was reverted, #142704

Both can be reapplied once we find a correct fix for that.

Author: jasonmolenda

lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp

@@ -246,10 +246,6 @@ llvm::StringRef SymbolFileDWARFDebugMap::GetPluginDescriptionStatic() {
 }
 
 SymbolFile *SymbolFileDWARFDebugMap::CreateInstance(ObjectFileSP objfile_sp) {
-  assert(objfile_sp);
-  // Don't create a debug map if the object file isn't a Mach-O.
-  if (!objfile_sp->GetArchitecture().GetTriple().isAppleMachO())
-    return nullptr;
   return new SymbolFileDWARFDebugMap(std::move(objfile_sp));
 }
 

lldb/unittests/SymbolFile/DWARF/CMakeLists.txt

@@ -4,7 +4,6 @@ add_lldb_unittest(SymbolFileDWARFTests
   DWARFDIETest.cpp
   DWARFIndexCachingTest.cpp
   DWARFUnitTest.cpp
-  SymbolFileDWARFDebugMapTests.cpp
   SymbolFileDWARFTests.cpp
   XcodeSDKModuleTests.cpp