cmMakefile: Remove cache version accessors.

They are only used by legacy code. Inline them there to simplify
cmMakefile.

Source/cmCPluginAPI.cxx

@@ -51,12 +51,14 @@ void CCONV cmSetError(void *info, const char *err)
 unsigned int CCONV  cmGetCacheMajorVersion(void *arg)
 {
   cmMakefile *mf = static_cast<cmMakefile *>(arg);
-  return mf->GetCacheMajorVersion();
+  cmCacheManager *manager = mf->GetCMakeInstance()->GetCacheManager();
+  return manager->GetCacheMajorVersion();
 }
 unsigned int CCONV cmGetCacheMinorVersion(void *arg)
 {
   cmMakefile *mf = static_cast<cmMakefile *>(arg);
-  return mf->GetCacheMinorVersion();
+  cmCacheManager *manager = mf->GetCMakeInstance()->GetCacheManager();
+  return manager->GetCacheMinorVersion();
 }
 
 unsigned int CCONV cmGetMajorVersion(void *)

Source/cmMakefile.cxx

@@ -174,16 +174,6 @@ void cmMakefile::Initialize()
   this->CheckCMP0000 = false;
 }
 
-unsigned int cmMakefile::GetCacheMajorVersion() const
-{
-  return this->GetCacheManager()->GetCacheMajorVersion();
-}
-
-unsigned int cmMakefile::GetCacheMinorVersion() const
-{
-  return this->GetCacheManager()->GetCacheMinorVersion();
-}
-
 cmMakefile::~cmMakefile()
 {
   cmDeleteAll(this->InstallGenerators);

Source/cmMakefile.h

@@ -62,14 +62,6 @@ class cmMakefile
   class Internals;
   cmsys::auto_ptr<Internals> Internal;
 public:
-  /**
-   * Return the major and minor version of the cmake that
-   * was used to write the currently loaded cache, note
-   * this method will not work before the cache is loaded.
-   */
-  unsigned int GetCacheMajorVersion() const;
-  unsigned int GetCacheMinorVersion() const;
-
   /* Check for unused variables in this scope */
   void CheckForUnusedVariables() const;
   /* Mark a variable as used */

Source/cmUtilitySourceCommand.cxx

@@ -52,11 +52,13 @@ bool cmUtilitySourceCommand
     }
   else
     {
+    cmCacheManager *manager =
+        this->Makefile->GetCMakeInstance()->GetCacheManager();
     haveCacheValue = (cacheValue &&
      (strstr(cacheValue, "(IntDir)") == 0 ||
       (intDir && strcmp(intDir, "$(IntDir)") == 0)) &&
-     (this->Makefile->GetCacheMajorVersion() != 0 &&
-      this->Makefile->GetCacheMinorVersion() != 0 ));
+     (manager->GetCacheMajorVersion() != 0 &&
+      manager->GetCacheMinorVersion() != 0 ));
     }
 
   if(haveCacheValue)