cmMakefile: Remove CurrentListFile member.

It is never read externally.  The CollapseFullPath removed in this commit
is a repeat of a similar call inside ReadListFile.

Source/cmMakefile.cxx

@@ -601,7 +601,6 @@ void cmMakefile::IncludeScope::EnforceCMP0011()
 bool cmMakefile::ProcessBuildsystemFile(const char* listfile)
 {
   this->AddDefinition("CMAKE_PARENT_LIST_FILE", listfile);
-  this->cmCurrentListFile = listfile;
   std::string curSrc = this->GetCurrentSourceDirectory();
   return this->ReadListFile(listfile, true,
                             curSrc == this->GetHomeDirectory());
@@ -611,11 +610,7 @@ bool cmMakefile::ReadDependentFile(const char* listfile, bool noPolicyScope)
 {
   this->AddDefinition("CMAKE_PARENT_LIST_FILE",
                       this->GetDefinition("CMAKE_CURRENT_LIST_FILE"));
-  this->cmCurrentListFile =
-    cmSystemTools::CollapseFullPath(listfile,
-                                    this->GetCurrentSourceDirectory());
-  return this->ReadListFile(this->cmCurrentListFile.c_str(),
-                            noPolicyScope);
+  return this->ReadListFile(listfile, noPolicyScope);
 }
 
 //----------------------------------------------------------------------------

Source/cmMakefile.h

@@ -418,14 +418,6 @@ public:
   void SetCurrentBinaryDirectory(const std::string& dir);
   const char* GetCurrentBinaryDirectory() const;
 
-  /* Get the current CMakeLists.txt file that is being processed.  This
-   * is just used in order to be able to 'branch' from one file to a second
-   * transparently */
-  const char* GetCurrentListFile() const
-    {
-      return this->cmCurrentListFile.c_str();
-    }
-
   //@}
 
   /**
@@ -845,8 +837,6 @@ protected:
   // Check for a an unused variable
   void CheckForUnused(const char* reason, const std::string& name) const;
 
-  std::string cmCurrentListFile;
-
   std::string ProjectName;    // project name
 
   // libraries, classes, and executables