cmMakefile: Inline Intialize method in constructor

Since commit 80909041 (cmMakefile: Disable copy constructor, 2015-04-18)
the only call to cmMakefile::Initialize is in one constructor.  Inline
it and drop the separate method.

Source/cmMakefile.cxx

@@ -121,12 +121,6 @@ cmMakefile::cmMakefile(cmLocalGenerator* localGenerator)
 
   this->AddDefaultDefinitions();
 
-  this->Initialize();
-}
-
-//----------------------------------------------------------------------------
-void cmMakefile::Initialize()
-{
   this->cmDefineRegex.compile("#cmakedefine[ \t]+([A-Za-z_0-9]*)");
   this->cmDefine01Regex.compile("#cmakedefine01[ \t]+([A-Za-z_0-9]*)");
   this->cmAtVarRegex.compile("(@[A-Za-z_0-9/.+-]+@)");

Source/cmMakefile.h

@@ -918,7 +918,6 @@ protected:
 private:
   cmMakefile(const cmMakefile& mf);
   cmMakefile& operator=(const cmMakefile& mf);
-  void Initialize();
 
   cmState::Snapshot StateSnapshot;