X11 includes and libs were added regardless of OPENGL_* settings

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@36757 15284696-431f-4ddb-bdfa-cd5b030d7da7

visualization/nviz2/cmd/Makefile

@@ -23,9 +23,7 @@ endif
 
 EXTRA_LDFLAGS = $(OGL_LIBS)
 
-EXTRA_CFLAGS=$(XCFLAGS) $(XMINC)
-
-LIBES = $(GISLIB) $(XLIBPATH) $(XLIB) $(XEXTRALIBS) $(OGSFLIB) $(NVIZLIB)
+LIBES = $(GISLIB) $(OGSFLIB) $(NVIZLIB)
 DEPENDENCIES = $(GISDEP) $(NVIZDEP)
 
 include $(MODULE_TOPDIR)/include/Make/Module.make