progs/glsl: Remove double target def for vert-or-frag-only

progs/glsl/Makefile

@@ -209,7 +209,6 @@ vert-or-frag-only: vert-or-frag-only.o shaderutil.o
 	$(APP_CC) -I$(INCDIR) $(CFLAGS) $(LDFLAGS) vert-or-frag-only.o shaderutil.o $(LIBS) -o $@
 
 
-
 vert-tex.o: vert-tex.c extfuncs.h shaderutil.h
 	$(APP_CC) -c -I$(INCDIR) $(CFLAGS) vert-tex.c