contrib: part of x264 win32 patch is now in upstream

Remove parts of win32 build patch that are in upstream git.
Signed-off-by: David Flynn <davidf@rd.bbc.co.uk>
Signed-off-by: Christophe Mutricy <xtophe@videolan.org>

extras/contrib/src/Patches/x264-svn-win32.patch

@@ -45,34 +45,3 @@
  EOF
  
  
---- Makefile	2008-04-06 09:07:25.000000000 +0200
-+++ Makefile	2008-04-06 09:11:39.000000000 +0200
-@@ -72,8 +72,8 @@
- default: $(DEP) x264$(EXE)
- 
- libx264.a: .depend $(OBJS) $(OBJASM)
--	ar rc libx264.a $(OBJS) $(OBJASM)
--	ranlib libx264.a
-+	$(AR) rc libx264.a $(OBJS) $(OBJASM)
-+	$(RANLIB) libx264.a
- 
- $(SONAME): .depend $(OBJS) $(OBJASM)
- 	$(CC) -shared -o $@ $(OBJS) $(OBJASM) $(SOFLAGS) $(LDFLAGS)
-@@ -90,7 +90,7 @@
- %.o: %.asm
- 	$(AS) $(ASFLAGS) -o $@ $<
- # delete local/anonymous symbols, so they don't show up in oprofile
--	-@ strip -x $@
-+	-@ $(STRIP) -x $@
- 
- .depend: config.mak
- 	rm -f .depend
-@@ -155,7 +155,7 @@
- 	install -m 644 libx264.a $(DESTDIR)$(libdir)
- 	install -m 644 x264.pc $(DESTDIR)$(libdir)/pkgconfig
- 	install x264$(EXE) $(DESTDIR)$(bindir)
--	ranlib $(DESTDIR)$(libdir)/libx264.a
-+	$(RANLIB) $(DESTDIR)$(libdir)/libx264.a
- ifeq ($(SYS),MINGW)
- 	$(if $(SONAME), install -m 755 $(SONAME) $(DESTDIR)$(bindir))
- else