contribs: drop win64 patch for libswscale

contrib/src/ffmpeg/ffmpeg-win64.patch

-Index: ffmpeg-svn/libswscale/swscale_template.c
-===================================================================
---- ffmpeg-svn/libswscale/swscale_template.c	(revision 31036)
-+++ ffmpeg-svn/libswscale/swscale_template.c	(working copy)
-@@ -2466,6 +2466,7 @@
-         }
-     } else {
- #endif /* COMPILE_TEMPLATE_MMX2 */
-+#if 0
-         x86_reg xInc_shr16 = (x86_reg) (xInc >> 16);
-         uint16_t xInc_mask = xInc & 0xffff;
-         __asm__ volatile(
-@@ -2501,6 +2502,7 @@
-             "r" (src2)
-             : "%"REG_a, "%"REG_d, "%ecx", "%"REG_D, "%esi"
-         );
-+#endif
- #if COMPILE_TEMPLATE_MMX2
-     } //if MMX2 can't be used
- #endif

contrib/src/ffmpeg/rules.mak

@@ -116,9 +116,6 @@ ffmpeg: ffmpeg-$(FFMPEG_VERSION).tar.gz .sum-ffmpeg
 	rm -Rf ffmpeg-git
 	mkdir -p ffmpeg-git
 	zcat "$<" | (cd ffmpeg-git && tar xv --strip-components=1)
-ifdef HAVE_WIN64
-	$(APPLY) $(SRC)/ffmpeg/ffmpeg-win64.patch
-endif
 ifdef HAVE_WIN32
 	sed -i "s/std=c99/std=gnu99/" $@-$(FFMPEG_VERSION)/configure
 endif

extras/contrib/src/Patches/ffmpeg-win64.patch

-Index: swscale_template.c
-===================================================================
---- swscale_template.c	(revision 31036)
-+++ swscale_template.c	(working copy)
-@@ -2466,6 +2466,7 @@
-         }
-     } else {
- #endif /* COMPILE_TEMPLATE_MMX2 */
-+#if 0
-         x86_reg xInc_shr16 = (x86_reg) (xInc >> 16);
-         uint16_t xInc_mask = xInc & 0xffff;
-         __asm__ volatile(
-@@ -2501,6 +2502,7 @@
-             "r" (src2)
-             : "%"REG_a, "%"REG_d, "%ecx", "%"REG_D, "%esi"
-         );
-+#endif
- #if COMPILE_TEMPLATE_MMX2
-     } //if MMX2 can't be used
- #endif

extras/contrib/src/contrib-src.mak

@@ -1086,9 +1086,6 @@ ffmpeg:
 ifdef HAVE_ISA_THUMB
 	patch -p0 < Patches/ffmpeg-avcodec-no-thumb.patch
 endif
-ifdef HAVE_WIN64
-	(cd ffmpeg/libswscale; patch -p0 < ../../Patches/ffmpeg-win64.patch;)
-endif
 ifdef HAVE_UCLIBC
 	patch -p0 < Patches/ffmpeg-svn-uclibc.patch
 	patch -p0 < Patches/ffmpeg-svn-internal-define.patch