remove unused variables, reported by icpc

Alex

Source/CPack/cmCPackGenerator.cxx

@@ -390,8 +390,6 @@ int cmCPackGenerator::InstallProjectViaInstallScript(
 {
   const char* cmakeScripts
     = this->GetOption("CPACK_INSTALL_SCRIPT");
-  std::string currentWorkingDirectory =
-    cmSystemTools::GetCurrentWorkingDirectory();
   if ( cmakeScripts && *cmakeScripts )
     {
     cmCPackLogger(cmCPackLog::LOG_OUTPUT,
@@ -460,8 +458,6 @@ int cmCPackGenerator::InstallProjectViaInstallCMakeProjects(
     = this->GetOption("CPACK_INSTALL_CMAKE_PROJECTS");
   const char* cmakeGenerator
     = this->GetOption("CPACK_CMAKE_GENERATOR");
-  std::string currentWorkingDirectory =
-    cmSystemTools::GetCurrentWorkingDirectory();
   if ( cmakeProjects && *cmakeProjects )
     {
     if ( !cmakeGenerator )

Source/cmMakefileTargetGenerator.cxx

@@ -576,9 +576,6 @@ cmMakefileTargetGenerator
   sourceFile = this->Convert(sourceFile.c_str(),
                              cmLocalGenerator::NONE,
                              cmLocalGenerator::SHELL);
-  std::string objectFile = this->Convert(obj.c_str(),
-                                         cmLocalGenerator::START_OUTPUT,
-                                         cmLocalGenerator::SHELL);
 
   // Construct the build message.
   std::vector<std::string> no_commands;