cmake: Remove confusing duplication.

Source/cmake.cxx

@@ -843,12 +843,8 @@ void cmake::SetArgs(const std::vector<std::string>& args,
     {
     this->SetHomeOutputDirectory
       (cmSystemTools::GetCurrentWorkingDirectory());
-    this->SetStartOutputDirectory
-      (cmSystemTools::GetCurrentWorkingDirectory());
     this->SetHomeDirectory
       (cmSystemTools::GetCurrentWorkingDirectory());
-    this->SetStartDirectory
-      (cmSystemTools::GetCurrentWorkingDirectory());
     }
 
   this->SetStartDirectory(this->GetHomeDirectory());