cmCustomCommand: Remove special member functions.

The compiler generated ones are fine.  The existing implementations
here are incorrect as they omit some members.

Source/cmCustomCommand.cxx

@@ -25,46 +25,6 @@ cmCustomCommand::cmCustomCommand()
   this->UsesTerminal = false;
 }
 
-//----------------------------------------------------------------------------
-cmCustomCommand::cmCustomCommand(const cmCustomCommand& r):
-  Outputs(r.Outputs),
-  Byproducts(r.Byproducts),
-  Depends(r.Depends),
-  CommandLines(r.CommandLines),
-  Backtrace(r.Backtrace),
-  Comment(r.Comment),
-  WorkingDirectory(r.WorkingDirectory),
-  HaveComment(r.HaveComment),
-  EscapeAllowMakeVars(r.EscapeAllowMakeVars),
-  EscapeOldStyle(r.EscapeOldStyle),
-  UsesTerminal(r.UsesTerminal)
-{
-}
-
-//----------------------------------------------------------------------------
-cmCustomCommand& cmCustomCommand::operator=(cmCustomCommand const& r)
-{
-  if(this == &r)
-    {
-    return *this;
-    }
-
-  this->Outputs = r.Outputs;
-  this->Byproducts= r.Byproducts;
-  this->Depends = r.Depends;
-  this->CommandLines = r.CommandLines;
-  this->HaveComment = r.HaveComment;
-  this->Comment = r.Comment;
-  this->WorkingDirectory = r.WorkingDirectory;
-  this->EscapeAllowMakeVars = r.EscapeAllowMakeVars;
-  this->EscapeOldStyle = r.EscapeOldStyle;
-  this->ImplicitDepends = r.ImplicitDepends;
-  this->Backtrace = r.Backtrace;
-  this->UsesTerminal = r.UsesTerminal;
-
-  return *this;
-}
-
 //----------------------------------------------------------------------------
 cmCustomCommand::cmCustomCommand(cmMakefile const* mf,
                                  const std::vector<std::string>& outputs,
@@ -90,11 +50,6 @@ cmCustomCommand::cmCustomCommand(cmMakefile const* mf,
     }
 }
 
-//----------------------------------------------------------------------------
-cmCustomCommand::~cmCustomCommand()
-{
-}
-
 //----------------------------------------------------------------------------
 const std::vector<std::string>& cmCustomCommand::GetOutputs() const
 {

Source/cmCustomCommand.h

@@ -26,8 +26,6 @@ class cmCustomCommand
 public:
   /** Default and copy constructors for STL containers.  */
   cmCustomCommand();
-  cmCustomCommand(const cmCustomCommand& r);
-  cmCustomCommand& operator=(cmCustomCommand const& r);
 
   /** Main constructor specifies all information for the command.  */
   cmCustomCommand(cmMakefile const* mf,
@@ -38,8 +36,6 @@ public:
                   const char* comment,
                   const char* workingDirectory);
 
-  ~cmCustomCommand();
-
   /** Get the output file produced by the command.  */
   const std::vector<std::string>& GetOutputs() const;