Remove barely-used cmCacheManager::AddCacheEntry

The commit "Remove barely-used cmMakefile::AddCacheDefinition" removed
all but one use of the cmCacheManager method 'bool' overload.  This
commit removes the other use and the entire method, thus reducing code
duplication.

Source/cmCacheManager.cxx

@@ -766,19 +766,6 @@ void cmCacheManager::AddCacheEntry(const char* key,
   this->Cache[key] = e;
 }
 
-void cmCacheManager::AddCacheEntry(const char* key, bool v,
-                                   const char* helpString)
-{
-  if(v)
-    {
-    this->AddCacheEntry(key, "ON", helpString, cmCacheManager::BOOL);
-    }
-  else
-    {
-    this->AddCacheEntry(key, "OFF", helpString, cmCacheManager::BOOL);
-    }
-}
-
 bool cmCacheManager::CacheIterator::IsAtEnd() const
 {
   return this->Position == this->Container.Cache.end();

Source/cmCacheManager.h

@@ -164,9 +164,6 @@ protected:
   void AddCacheEntry(const char* key, const char* value, 
                      const char* helpString, CacheEntryType type);
 
-  ///! Add a BOOL entry into the cache
-  void AddCacheEntry(const char* key, bool, const char* helpString);
-
   ///! Get a cache entry object for a key
   CacheEntry *GetCacheEntry(const char *key);
   ///! Clean out the CMakeFiles directory if no CMakeCache.txt

Source/cmake.cxx

@@ -2153,8 +2153,9 @@ int cmake::ActualConfigure()
   if(!this->CacheManager->GetCacheValue("CMAKE_USE_RELATIVE_PATHS"))
     {
     this->CacheManager->AddCacheEntry
-      ("CMAKE_USE_RELATIVE_PATHS", false,
-       "If true, cmake will use relative paths in makefiles and projects.");
+      ("CMAKE_USE_RELATIVE_PATHS", "OFF",
+       "If true, cmake will use relative paths in makefiles and projects.",
+       cmCacheManager::BOOL);
     cmCacheManager::CacheIterator it =
       this->CacheManager->GetCacheIterator("CMAKE_USE_RELATIVE_PATHS");
     if ( !it.PropertyExists("ADVANCED") )