0020716: Eliminate usage of "config.h" header file

All inclusions of "config.h" were removed.

All places where macros defined by config.h were checked and removed

Small corrections for mac os.

Unused code in file OSD_Disk.cxx was removed.

Unused macros and includes were removed from samples and code.

Added necessary includes for MacOS.

Correct new additional compilation warning on Linux platform.

Fix for error in OSD_Chronometer on Debian70/Fedora18

src/TopOpeBRepBuild/TopOpeBRepBuild_Griddump.cxx

@@ -14,9 +14,6 @@
 // Alternatively, this file may be used under the terms of Open CASCADE
 // commercial license or contractual agreement.
 
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
 #include <TopOpeBRepBuild_Builder.ixx>
 #include <TopOpeBRepBuild_define.hxx>
 #include <stdio.h>
@@ -63,9 +60,6 @@
 #include <TopOpeBRepBuild_WireEdgeSet.hxx>
 
 #ifdef DEB
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif
 extern Standard_Boolean TopOpeBRepDS_GettraceSPSX(const Standard_Integer);
 extern Standard_Boolean TopOpeBRepDS_GettraceSPSXX(const Standard_Integer,const Standard_Integer);
 static TCollection_AsciiString PRODINS("dins ");