glx: automake: scons: remove unneeded GLX_SHARED_GLAPI define

There's no users in-tree that use it.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

src/glx/Makefile.am

@@ -20,7 +20,6 @@
 # IN THE SOFTWARE.
 
 if HAVE_SHARED_GLAPI
-SHARED_GLAPI_CFLAGS = -DGLX_SHARED_GLAPI
 SHARED_GLAPI_LIB = $(top_builddir)/src/mapi/shared-glapi/libglapi.la
 endif
 
@@ -42,7 +41,6 @@ AM_CFLAGS = \
 	-I$(top_builddir)/src/mapi/glapi \
 	-I$(top_srcdir)/src/mapi/glapi \
 	$(VISIBILITY_CFLAGS) \
-	$(SHARED_GLAPI_CFLAGS) \
 	$(EXTRA_DEFINES_XF86VIDMODE) \
 	-D_REENTRANT \
 	-DDEFAULT_DRIVER_DIR=\"$(DRI_DRIVER_SEARCH_DIR)\" \

src/glx/SConscript

@@ -40,9 +40,6 @@ if env['HAVE_XF86VIDMODE']:
     env.Append(CPPDEFINES = ['XF86VIDMODE'])
     env.PkgUseModules('XF86VIDMODE')
 
-if False: # XXX: SHARED_GLAPI
-    env.Append(CPPDEFINES = ['GLX_SHARED_GLAPI'])
-
 sources = [
     'clientattrib.c',
     'clientinfo.c',