glapi: no longer emit #include "mfeatures.h" in generated files

None of the symbols in mfeatures.h are used anymore.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

src/mapi/glapi/gen/gl_enums.py

@@ -43,7 +43,6 @@ class PrintGlEnums(gl_XML.gl_print_base):
 
     def printRealHeader(self):
         print '#include "main/glheader.h"'
-        print '#include "main/mfeatures.h"'
         print '#include "main/enums.h"'
         print '#include "main/imports.h"'
         print '#include "main/mtypes.h"'

src/mapi/glapi/gen/gl_genexec.py

@@ -44,7 +44,6 @@ header = """/**
  */
 
 
-#include "main/mfeatures.h"
 #include "main/accum.h"
 #include "main/api_loopback.h"
 #include "main/api_exec.h"

src/mapi/glapi/gen/gl_table.py

@@ -97,12 +97,6 @@ class PrintRemapTable(gl_XML.gl_print_base):
  * can SET_FuncName, are used to get and set the dispatch pointer for the
  * named function in the specified dispatch table.
  */
-
-/* GLXEXT is defined when building the GLX extension in the xserver.
- */
-#if !defined(GLXEXT)
-#include "main/mfeatures.h"
-#endif
 """
         return